I agree with Corriefan actually; I think words on a page can certainly affect someone, particularly if that person has opened themselves up and is genuinely seeking advice (admittedly that does not appear to describe LeQueen ).
It seems to be acceptable now to write things on forums, in comment sections of online newspaper articles (not just the DM, either ) etc, that it seems unlikely to me that people would say to the person in RL. I know that anonymity gives a certain freedom, and I think that's the attraction in it, but it can also give you licence to be quite cruel, and justify it with 'well it's just words on a screen'. Does that make it ok to be cruel? I'm not talking about specific posts/posters BTW, just generally.
Also, I think it depends on how honest you are online. If you use forums etc to let off steam as an alter-ego to some degree, then the replies are going to wash off you much more easily, as you're deliberately presenting a part of yourself. If you're just being you, though, warts and insecurities and all, then someone digging at you is probably going to feel alot more uncomfortable.
Incidentally, I go on another forum (not parenting related), and I've never read an unsupportive, bitchy or accusatory post there. I wonder if it's because the members meet up on a regional level, and therefore aren't just words on a screen; they know the faces behind the words.
Anyway, as I said in the OP, the bitchiness makes compulsive reading...I feel dirty for reading and enjoying it, but I still come back for more...