I was last browsing 4chan in 2012. IDK about other boards but on /b/ i won't call it free speech but hate speech, plus the sickening post under the thread "mods are asleep" or "girl with braces" for underage teens, and to no surprise these threads are not even deleted by mods. And i think about the banning on 4chan it was always up to the mods if they don't like what your posting then you get banned. Sometimes m00t was also pops up on a thread and banning ppl for the laugh at it.
The only good thing 4chan is, it makes me questioned, investigate, and learn to not become hateful.