The prank loving Sims-chan

I beat it to this.
You can't do literally anything about it.

It's not even illegal outside of places like canadistan or bongerland, and even in the places where it is it only qualifies as a crime if you knowingly download and thus possess the pictures in your hard drive, so your fantasy of the fbi coming for people for this stuff is pretty much also only that: a fantasy.

The people who run the site also don't really give a shit, and among users you're a loud minority since everyone else who likes this shit just cums and goes instead of taking their time to make an absolutely seething comment.