4chan is moderated specifically to encourage the views it harbors. The state it is right now is the result of censorship by white nationalist moderators and coordinated action.

EDIT: This happened to me thrice. I got 3 temp-bans from /pol/ for having politics the mods didnt like.

https://www.vice.com/en/article/m7aap8/the-man-who-helped-tu...