> And it's up to us to pressure these private businesses to do that.
No it isn't. I am fed up of something I like being ruined by moral busy bodies such as yourself. My friend and I like the "edgy" jokes because we work in environments where you have to be political correct and I need to let off some steam.
8chan isn't the problem. The problem is that large portions of the population aren't engaged in society at large. The is a huge problem with loneliness, suicide and general lack of meaning to life.
Censorship and harassing companies that run image board won't fix the problem. All you will do it hide it.