As a frequent channer I find Reddit a hugbox of insulating opinions and gaming the karma system (To the point where commentary can be as trite as shitty dad-tier jokes). The benefit of 4chan and company is that once the identity is stripped away (and a filter for callous remarks created) a user is actually free to speak their mind.

Sometimes this develops into meaningful posts, othertimes it ends up as a mess of shitposting. But the freedom is there and it is wonderful.