Racism, hate speech in general, as well as anything illegal, will quickly result in deletion and IP ban.
The site will also, as it's obvious, cooperate with authorities, when it comes to crimes.
4chan is far from being a free-speech absolutist site.
About half the posts were pornography, racist rants, or memes making fun of someone, often for being mentally handicapped.
Five percent was accusing the moderators of sleeping on the job.
Edit: I love that people are down-voting this, it really shows how much people like to have an opinion even while they can't recognize even the most obvious things that requires any information about the subject.
People like to confuse "free speech absolutism" for "tolerating right-wing speech" because the free speech absolutist narrative has been pushed by right-wing accelerationists, but every site has its limits, even 4chan.
The elephant in the room is that USA appointed itself as a policeman for the whole network. Demands of its state and business entities are somehow tied to the fact that there is no true free speech on the open internet.
