Comment by ErroneousBosh

It had user accounts and it hosts prodigious amounts of porn, so it ran afoul of the part of the law that says that if you have user accounts and host user-generated content of any sort you have to make sure you're not showing porn to children.

It's annoying, but Imgur really do need to get a handle on things because that's where people host all the CSAM they post into Matrix channels.