diff --git a/hive/db/schema.py b/hive/db/schema.py
index f4d2d9c9e1b1ad8876509f1c6d8489964239a627..4e0a29d3449a6102e7b09b5f9afa3e57b9593ee1 100644
--- a/hive/db/schema.py
+++ b/hive/db/schema.py
@@ -563,7 +563,6 @@ def setup(db):
       "update_feed_cache.sql",
       "payout_stats_view.sql",
       "update_hive_posts_mentions.sql",
-      "find_tag_id.sql",
       "mutes.sql",
       "bridge_get_ranked_post_type.sql",
       "bridge_get_ranked_post_for_communities.sql",
diff --git a/hive/db/sql_scripts/bridge_get_ranked_post_for_all.sql b/hive/db/sql_scripts/bridge_get_ranked_post_for_all.sql
index 229985da24c0e0e903384ecc76114f5f449a5612..426d7b798bb1b7bdc2a3765016c3a07c3276d732 100644
--- a/hive/db/sql_scripts/bridge_get_ranked_post_for_all.sql
+++ b/hive/db/sql_scripts/bridge_get_ranked_post_for_all.sql
@@ -8,7 +8,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -76,7 +76,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.sc_hot INTO __hot_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -220,7 +220,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -294,7 +294,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -369,7 +369,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.promoted INTO __promoted_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -442,7 +442,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.sc_trend INTO __trending_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
diff --git a/hive/db/sql_scripts/bridge_get_ranked_post_for_communities.sql b/hive/db/sql_scripts/bridge_get_ranked_post_for_communities.sql
index a6f1f91f72f4be3e7ef942a3ae43f75c25803aec..4658fcf76b1abbf0f8c84720a8646d32efb854af 100644
--- a/hive/db/sql_scripts/bridge_get_ranked_post_for_communities.sql
+++ b/hive/db/sql_scripts/bridge_get_ranked_post_for_communities.sql
@@ -6,7 +6,7 @@ $function$
 DECLARE
   __observer_id INT;
 BEGIN
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -67,7 +67,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.sc_trend INTO __trending_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -142,7 +142,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.promoted INTO __promoted_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -217,7 +217,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id( _observer, False );
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -292,7 +292,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -438,7 +438,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   IF __post_id <> 0 THEN
       SELECT hp.sc_hot INTO __hot_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
@@ -511,7 +511,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
diff --git a/hive/db/sql_scripts/bridge_get_ranked_post_for_tag.sql b/hive/db/sql_scripts/bridge_get_ranked_post_for_tag.sql
index dd098386725ae2e71820502bb86a929a58831c15..7c40c81a7c81ddaeadf6b0a6876bfd7f185770b2 100644
--- a/hive/db/sql_scripts/bridge_get_ranked_post_for_tag.sql
+++ b/hive/db/sql_scripts/bridge_get_ranked_post_for_tag.sql
@@ -10,7 +10,7 @@ DECLARE
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
   __hive_tag = ARRAY_APPEND( __hive_tag, find_tag_id( _tag, True ));
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -85,7 +85,7 @@ BEGIN
       SELECT hp.sc_hot INTO __hot_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
   __hive_tag = ARRAY_APPEND( __hive_tag, find_tag_id( _tag, True ));
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -233,7 +233,7 @@ BEGIN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
   __hive_category = find_category_id( _category, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -310,7 +310,7 @@ BEGIN
   END IF;
   __hive_category = find_category_id( _category, True );
   __head_block_time = head_block_time();
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -386,7 +386,7 @@ BEGIN
       SELECT hp.promoted INTO __promoted_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
   __hive_tag = ARRAY_APPEND( __hive_tag,  find_tag_id( _tag, True ) );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
@@ -461,7 +461,7 @@ BEGIN
       SELECT hp.sc_trend INTO __trending_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
   __hive_tag = ARRAY_APPEND( __hive_tag, find_tag_id( _tag, True ));
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id( _observer, True );
   RETURN QUERY SELECT
       hp.id,
       hp.author,
diff --git a/hive/db/sql_scripts/condenser_tags.sql b/hive/db/sql_scripts/condenser_tags.sql
index 0812832b4b04ef8eccef4f6aed217d057a893915..684da1c61df6f754a746b40de74e09e15265119d 100644
--- a/hive/db/sql_scripts/condenser_tags.sql
+++ b/hive/db/sql_scripts/condenser_tags.sql
@@ -26,7 +26,7 @@ DECLARE
   __category_id INT;
   __payout_limit hive_posts.payout%TYPE;
 BEGIN
-  __category_id = find_category_id( _category, _category <> '' );
+  __category_id = find_category_id( _category, True );
   IF __category_id <> 0 THEN
       SELECT SUM(hp.payout + hp.pending_payout) INTO __payout_limit
       FROM hive_posts hp
diff --git a/hive/db/sql_scripts/db_upgrade.sh b/hive/db/sql_scripts/db_upgrade.sh
index c45d409134e3e38c1b12c279b6de561f3d47637a..a6ec3b57f75ed5efa358204d58522c3daa5ba7af 100755
--- a/hive/db/sql_scripts/db_upgrade.sh
+++ b/hive/db/sql_scripts/db_upgrade.sh
@@ -21,7 +21,6 @@ for sql in postgres_handle_view_changes.sql \
           update_feed_cache.sql \
           payout_stats_view.sql \
           update_hive_posts_mentions.sql \
-          find_tag_id.sql \
           mutes.sql \
           bridge_get_ranked_post_type.sql \
           bridge_get_ranked_post_for_communities.sql \
diff --git a/hive/db/sql_scripts/find_tag_id.sql b/hive/db/sql_scripts/find_tag_id.sql
deleted file mode 100644
index f35fef406b7118e7822a051efed43f9e568c61e6..0000000000000000000000000000000000000000
--- a/hive/db/sql_scripts/find_tag_id.sql
+++ /dev/null
@@ -1,41 +0,0 @@
-DROP FUNCTION IF EXISTS public.find_tag_id CASCADE;
-CREATE OR REPLACE FUNCTION public.find_tag_id(
-    in _tag_name hive_tag_data.tag%TYPE,
-    in _check BOOLEAN
-)
-RETURNS INTEGER
-LANGUAGE 'plpgsql' STABLE
-AS
-$BODY$
-DECLARE
-  __tag_id INTEGER;
-BEGIN
-  SELECT INTO __tag_id COALESCE( ( SELECT id FROM hive_tag_data WHERE tag=_tag_name ), 0 );
-  IF _check AND __tag_id = 0 THEN
-      RAISE EXCEPTION 'Tag % does not exist', _tag_name;
-  END IF;
-  RETURN __tag_id;
-END
-$BODY$
-;
-
-DROP FUNCTION IF EXISTS public.find_category_id CASCADE;
-CREATE OR REPLACE FUNCTION public.find_category_id(
-    in _category_name hive_category_data.category%TYPE,
-    in _check BOOLEAN
-)
-RETURNS INTEGER
-LANGUAGE 'plpgsql' STABLE
-AS
-$BODY$
-DECLARE
-  __category_id INTEGER;
-BEGIN
-  SELECT INTO __category_id COALESCE( ( SELECT id FROM hive_category_data WHERE category=_category_name ), 0 );
-  IF _check AND __category_id = 0 THEN
-      RAISE EXCEPTION 'Category % does not exist', _category_name;
-  END IF;
-  RETURN __category_id;
-END
-$BODY$
-;
diff --git a/hive/db/sql_scripts/utility_functions.sql b/hive/db/sql_scripts/utility_functions.sql
index 098af5bf66593294dce76615a534e81fc9f8d538..896de4fe59565145d20cc5fe54be59ebc54f7754 100644
--- a/hive/db/sql_scripts/utility_functions.sql
+++ b/hive/db/sql_scripts/utility_functions.sql
@@ -76,3 +76,51 @@ BEGIN
 END
 $function$
 ;
+
+DROP FUNCTION IF EXISTS public.find_tag_id CASCADE
+;
+CREATE OR REPLACE FUNCTION public.find_tag_id(
+    in _tag_name hive_tag_data.tag%TYPE,
+    in _check BOOLEAN
+)
+RETURNS INTEGER
+LANGUAGE 'plpgsql' STABLE
+AS
+$function$
+DECLARE
+  __tag_id INT = 0;
+BEGIN
+  IF (_tag_name <> '') THEN
+    SELECT INTO __tag_id COALESCE( ( SELECT id FROM hive_tag_data WHERE tag=_tag_name ), 0 );
+    IF _check AND __tag_id = 0 THEN
+      RAISE EXCEPTION 'Tag % does not exist', _tag_name;
+    END IF;
+  END IF;
+  RETURN __tag_id;
+END
+$function$
+;
+
+DROP FUNCTION IF EXISTS public.find_category_id CASCADE
+;
+CREATE OR REPLACE FUNCTION public.find_category_id(
+    in _category_name hive_category_data.category%TYPE,
+    in _check BOOLEAN
+)
+RETURNS INTEGER
+LANGUAGE 'plpgsql' STABLE
+AS
+$function$
+DECLARE
+  __category_id INT = 0;
+BEGIN
+  IF (_category_name <> '') THEN
+    SELECT INTO __category_id COALESCE( ( SELECT id FROM hive_category_data WHERE category=_category_name ), 0 );
+    IF _check AND __category_id = 0 THEN
+      RAISE EXCEPTION 'Category % does not exist', _category_name;
+    END IF;
+  END IF;
+  RETURN __category_id;
+END
+$function$
+;
diff --git a/hive/server/bridge_api/methods.py b/hive/server/bridge_api/methods.py
index 1250cb1d90da174c27235c4b7299f2a8fe7f4e53..c9fb5ef0ef998cc8c879806a49473e8ba5ca66c4 100644
--- a/hive/server/bridge_api/methods.py
+++ b/hive/server/bridge_api/methods.py
@@ -222,7 +222,7 @@ async def _get_ranked_posts_for_all( db, sort:str, start_author:str, start_perml
 
 @return_error_info
 async def get_ranked_posts(context, sort:str, start_author:str='', start_permlink:str='',
-                           limit:int=20, tag:str=None, observer:str=None):
+                           limit:int=20, tag:str='', observer:str=''):
     """Query posts, sorted by given method."""
     supported_sort_list = ['trending', 'hot', 'created', 'promoted', 'payout', 'payout_comments', 'muted']
     assert sort in supported_sort_list, "Unsupported sort, valid sorts: {}".format(", ".join(supported_sort_list))
@@ -241,11 +241,11 @@ async def get_ranked_posts(context, sort:str, start_author:str='', start_permlin
             posts.append(post)
         return posts
 
-    valid_account(start_author, allow_empty=True)
-    valid_permlink(start_permlink, allow_empty=True)
-    valid_limit(limit, 100, 20)
-    valid_tag(tag, allow_empty=True)
-    valid_account(observer, allow_empty=(tag != "my"))
+    start_author = valid_account(start_author, allow_empty=True)
+    start_permlink = valid_permlink(start_permlink, allow_empty=True)
+    limit = valid_limit(limit, 100, 20)
+    tag = valid_tag(tag, allow_empty=True)
+    observer = valid_account(observer, allow_empty=(tag != "my"))
 
     if tag == "my":
         result = await _get_ranked_posts_for_observer_communities(db, sort, start_author, start_permlink, limit, observer)
diff --git a/hive/server/condenser_api/tags.py b/hive/server/condenser_api/tags.py
index d6f05ca2b8d58a55ebf3a0367f6226deb016a039..d63cd62e04c77966c4fba052dd81ec800cd84d06 100644
--- a/hive/server/condenser_api/tags.py
+++ b/hive/server/condenser_api/tags.py
@@ -16,7 +16,7 @@ async def get_trending_tags(context, start_tag: str = '', limit: int = 250):
     """Get top 250 trending tags among pending posts, with stats."""
 
     limit = valid_limit(limit, 250, 250)
-    start_tag = valid_tag(start_tag or '', allow_empty=True)
+    start_tag = valid_tag(start_tag, allow_empty=True)
 
     sql = "SELECT * FROM condenser_get_trending_tags( (:tag)::VARCHAR, :limit )"
 
diff --git a/mock_data/block_data/community_op/flow.txt b/mock_data/block_data/community_op/flow.txt
index ceb7dcbd73b096348be089ccddb71c6d186541d1..dd8778f8d9064a79f93089c243bca8a6958c47e4 100644
--- a/mock_data/block_data/community_op/flow.txt
+++ b/mock_data/block_data/community_op/flow.txt
@@ -11,6 +11,7 @@ account_create_operation( `hive-149232` )
 account_create_operation( `hive-104647` )
 comment_operation( `hive-135485`, `test-safari`, `secrets1`)
 comment_operation( `hive-135485`, `test-safari`, `secrets2`)
+transfer_opearation( `test-safari`, `null`, `0.010666 HBD`, `@test-safari/secrets2` ) - post promotion (with bad amount precision to see what happens - rounding occurs)
 comment_operation( `hive-117600`, `test-safari`, `secrets3`)
 comment_operation( `hive-117600`, `test-safari`, `secrets4`)
 comment_operation( `hive-117600`, `test-safari`, `secrets5`)
diff --git a/mock_data/block_data/community_op/mock_block_data_community.json b/mock_data/block_data/community_op/mock_block_data_community.json
index 081b18678d04fe777e97cfd886faafc5b82781d3..4804a706a4de68d678944f21154239f8f399a52c 100644
--- a/mock_data/block_data/community_op/mock_block_data_community.json
+++ b/mock_data/block_data/community_op/mock_block_data_community.json
@@ -436,6 +436,15 @@
               "json_metadata": "{}"
             }
           },
+          {
+            "type": "transfer_operation",
+            "value": {
+              "from": "test-safari",
+              "to": "null",
+              "amount": "0.010666 HBD",
+              "memo": "@test-safari/secrets2"
+            }
+          },
           {
             "type": "comment_operation",
             "value": {
diff --git a/mock_data/block_data/follow_op/mock_block_data_follow.json b/mock_data/block_data/follow_op/mock_block_data_follow.json
index 2d6c189d2dac39ea225df80b70d3cf88bd79f9bd..f7ac08d2d6d644e47623bf4c0c65ef4c2fdda5fb 100644
--- a/mock_data/block_data/follow_op/mock_block_data_follow.json
+++ b/mock_data/block_data/follow_op/mock_block_data_follow.json
@@ -748,7 +748,7 @@
                 "ignoreall"
               ],
               "id": "follow",
-              "json": "[\"follow\",{\"follower\":\"ignoreall\",\"following\":[\"gtg\",\"alice\",\"davr86\"],\"what\":[\"ignore\"]}]"
+              "json": "[\"follow\",{\"follower\":\"ignoreall\",\"following\":[\"gtg\",\"alice\",\"davr86\",\"fyrstikken\",\"gavvet\",\"ooak\",\"kental\",\"r4fken\",\"roland.haynes\",\"agartha\",\"feline1991\"],\"what\":[\"ignore\"]}]"
             }
           }
         ]
diff --git a/tests/tests_api b/tests/tests_api
index 87c4457827200ef54f8fe64f942df641a9f1b1af..10288df4f5217ee9c38b5fb8e8c0b916500a7df9 160000
--- a/tests/tests_api
+++ b/tests/tests_api
@@ -1 +1 @@
-Subproject commit 87c4457827200ef54f8fe64f942df641a9f1b1af
+Subproject commit 10288df4f5217ee9c38b5fb8e8c0b916500a7df9