Imgur now blocks several VPNs and have issues loading embedded previews in several fediverse platforms. So instead of using imgur, you could use one of the following alternatives for uploading your images.
https://postimages.org/
https://imgbox.com/
https://imgbb.com/
https://www.imagebam.com/
Short answer is yes. Long answer is that with text it’s much easier to stamp out illegal activity because keyword searches are cheap while semantic searches in images are pretty good but extremely computationally expensive. You can’t just scan for illegal activity in images the same way you can nigh instantly scan a body of text for “illegal-site.com”.
That makes a certain kind of sense but does that mean the filtering algorithm Facebook uses that targets NSFW photos in posts and group chats is very complicated and expensive? is it important for a site like reddit or Lemmy to scan for illegal activities oj a photo?