diff --git a/hive/server/serve.py b/hive/server/serve.py
index 230c08faa5f25da25981b6977b502ebfad77eef8..f881c4334a0d40f7e761c71c11c8b2c88d65efb4 100644
--- a/hive/server/serve.py
+++ b/hive/server/serve.py
@@ -106,6 +106,7 @@ def build_methods():
         'follow_api.get_blog': condenser_api.get_blog,
         'follow_api.get_blog_entries': condenser_api.get_blog_entries,
         'follow_api.get_reblogged_by': condenser_api.get_reblogged_by,
+        # three functions under are not implemented, should we remove them?
         'follow_api.get_feed_entries': follow_api.get_feed_entries,
         'follow_api.get_feed': follow_api.get_feed,
         'follow_api.get_blog_authors': follow_api.get_blog_authors
@@ -125,6 +126,7 @@ def build_methods():
         'tags_api.get_post_discussions_by_payout': condenser_api.get_post_discussions_by_payout,
         'tags_api.get_comment_discussions_by_payout': condenser_api.get_comment_discussions_by_payout,
         'tags_api.get_active_votes' : tags_api.get_active_votes,
+        # five functions under are not implemented, should we remove them?
         'tags_api.get_tags_used_by_author' : tags_api.get_tags_used_by_author,
         'tags_api.get_discussions_by_active' : tags_api.get_discussions_by_active,
         'tags_api.get_discussions_by_cashout' : tags_api.get_discussions_by_cashout,