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.
I find that my ability to load Imgur depends on the exit server I choose. If the server is in the US, it gets blocked. If the server is in South America it works fine. Ecuador works well for almost everything.