Unique? That is untrue. Many boards allow it. Do you mean "rare"? I don't think that is true either.
I think it is safe to say that something needs to break here. No way things can continue like this.
You say that some come soley to provoke anger. I agree. That appears to be the case. But what I have seen much more often is that if someone comes here and offers any criticism whatsoever of Tiger, they get personally attacked by long standing members of this board. I am surprisd the mods and admins allow personal attacks. It is not surprising at all that once someone gets personally attacked that things deteriorate quickly.