Not all images use image proxy
I have noticed some older posts show images that display and some that do not. I notice they all work fine on Peakd.com though.
Example Hive.blog
Example Peakd.com
Post in question
- https://hive.blog/linux/@themarkymark/use-ssh-all-the-time-time-for-a-big-boy-ssh-client
- https://peakd.com/linux/@themarkymark/use-ssh-all-the-time-time-for-a-big-boy-ssh-client
From the looks of it, Hive.blog is not always using the image proxy when displaying links, the images that fail are going directly to the image (seeing as this is an old post, those images are hosted on steemitimages.com image proxy).