What even is 4chan? I haven't cared enough to look

It sounds like a hentai website

4chan is an imageboard website that is mostly used by young males. Official demographics state that the most popular age group are those between 18 and 25. However, there are multiple personal stories online of teens who use 4chan. It was originally created as an answer to Japan's 2chan and used to discuss anime.

they do much MUCH worse thing than discuss anime or post hentai

Ironically the guy who made it created 4chan because Something Awful didn't allow hentai

QHA

It's kinda shitty now but it was way better 2010-2020

Based on all the youtube videos, I thought 4chan was a website where a community could track people down or something, so I went to check it out aaaaaaand

Actually, KiwiFarms is more similar to what you thought
Both KiwiFarms and 4chan also have a lot of Neo Nazis though

Oh,
Idk whatvthis means

4chan is so f**ked up it reminds me of "hitting the rock bottom" like the guy from fight club did