Imgur blocks access to most VPN IP addresses so any posts using the host will result in many users being unable to see the content. Sometimes only remote viewing is affected but is also often blocked when trying to open in new tab and view at the parent site.
Consider uploading to the fediverse or using a privacy-respecting hosting service like postimages.
Same goes for catbox links. Either post the fatbox link instead or choose a different image host, the VPN is not getting turned off just for shitposts.
Didn’t know catbox are also blocked by some as well