Does anyone know of any more sites that tolerate extreme content? So far, I can only think of three: Here, exhentai and ATF. Pixiv is cracking down more and more by the day, 8chan is dead as a doornail, and I think even Ao3 is starting to remove more stories.

They don't have to be even that feature rich, just an anything-goes pastebin would be good for starters.