>>143022
I guess >>142906's explanation makes a good amount of sense for 3D stuff, but I don't know if it also applies to anime, vidya and 2D stuff. It could be related to teens entering communities and getting sexted or something (like the cliche d*sc*rd moderators or minecraft youtuber stories), and the admins managing the site gave up on trying to handle them, leading to the end of cool forums. But I don't know if it's the only reason for the small number of unpleasant people that seems everpresent around a lot of modern sites and media, especially with things like literature (fanfiction erotica) and horror stories (that are also horny in addition to being horrifying).