4Chan has an insane reputation but outside of a few boards it wasn't really worse than reddit, Facebook, or twitter (which is to say, social media is a pretty mixed bag) and posters were a fair bit funnier.
I am kinds baffled by the idea of 4Chan as this hive of scum and villany. As if Nazis don't recruit on Facebook, or reddit didn't have jailbait, theDonald, and xpeoplehate as massive prominent subs.
There are literal terrorist cells on Facebook...