>>6373072depends on the board and the opinion in question but there are definitely echo-chamber like elements to 4chan, like he described, and even if you do stuff like type in a full sentence a drop a
reddit space
into your post just to trigger people but don't say anything divergent from the prevailing narrative, you will instantly trigger the lurkers scanning threads with nothing to add except snarky greentexts about how someone's comment belongs on reddit. reddit has subs that are even worse because they're basically echo chambers by design, and the default subs are mostly as bad as facebook but many subs have far more diversity of opinion than you find on most boards here...
(not that I ever go on reddit) :*)