I think you've hit on the core issue here. Whilst I abhor some of the hatred and viciousness posted online, and think it's absurd to try to turn it into a free speech issue, I can understand the benefit of no censorship: drawing the line, consistently, is very, very difficult - maybe impossible. But even reddit draws a line (US law?), so there's no getting away from it.

Does anyone here advocate 'free speech' so strongly that they wouldn't mind someone posting their personal details or naked photos online? I'm sure some people are so thick-skinned that they could handle that, but I certainly couldn't.