I see your point masak_aer, but I do believe that history will show that if a person is a supreme jackass in one thread, then he
likely isn't very helpful in other threads, and therefore his reputation will precede him in all ensuing discussions. While they can be tiresome and annoying, I do think that the majority of the members here are smart enough to either ignore them, or in extreme cases deliver the fatal red chicklet, without becoming trigger happy with any noob who poses a seemingly ridiculous question. Therein lies the danger - lest we all become witch hunters in some quasi-modern day internet Salem.
If it were up to me - instead of a clown (for only those deserving enough), any time they tried to post text, it would come out like this:
In order to reverse it, they would have to contact one of the mods, beg for forgiveness, and buy each member of the forum a new set of speakers to atone for their antics.