Rules of polite, civilized society demands that it is unacceptable. Though when people log on a game, get that veil of anonymity, they start to behave poorly. Some people dig that, fine, that's them--but the rest of us, it makes us uncomfortable, and drives us away from otherwise enjoyable content. I miss high level raiding, I really do, but the toxic environment, the hostility, the aggression, those aren't worth it to me, and I really don't think I'm the only one.
Raiding thrives on participation. Raiding will die out when participation levels drop too much. So why the raiding community is OK with ostracizing potential players is really baffling.
