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.
> Does anyone have a mirror? I’m in authoritarian UK so the link is blocked
Here you go. I had it uploaded after hearing from the magospietato's comment but then saw you talk about the same so I am pasting the same image link here as well
