If (I know, big if) Q is for real, then he is posting where there is less censorship. The Chans, by virtue of what is there, have less censorship.
Think of them like a forest. What could you find in an unincorporated wild forest? Beautiful birds, nests of animals, a nice family in their vacation cottage, the unibomber, college hikers, panthers, new tropical plants to create life saving medicine, poisonous snakes, hideouts for pedophiles, basically everything.
You can’t just say “I don’t trust the forest.” I mean, you can’t trust sites like CNN or the New York Times. You can’t trust anything in a blanket way these days. Research and use your own common sense, occam’s razor, etc.
True, less censorship, but harder to separate the wheat from the chaff. And I guess there were fake “Q”s out there.