>Also, it seems like with user sovereignty and decentralization, that there will be various objectionable or even vile communities is inevitable, right? [...] I imagine responding to tech blogs with, "yes, there are white supremacist sub-communities, but you don't have to see them if you don't want to" won't come across as a very satisfying answer from their perspective.

We comply with the letter of the law for the jurisdiction we fall under.

Trying to explain anything to a mob is pointless. We don't need to add ever more censors to what we see. The US government is bad enough, some hipster in NY or SF writing for a glorified wordpress blog should be as relevant as the mullah for Iran's most backward village.