It was actually the stuff that was really personal, like dissecting a poster's medical/psychological history and collectively bashing them that I thought was pretty low, IMO, and I'm pretty sure people wouldn't be saying the kind of stuff they did if they had to put their own name to it (well, their own username, not that that tells you much naturally). Of course, again, the solution is to not read it, I got it.
And I did consider that I was opening up a recursion field by starting a thread about people who talk about people who talk about people etc etc, but decided to do it anyway.