Snoopy: There was an idiot a couple of months ago who amused himself by excreting rubbish all over the place: DBs, poker tables, PMs and walls. Luckily for most of the users he (she?) did it only in French.

As a mod of the French board I kicked him out, then repeated the exercise whenever he popped back using a fresh alias. He finally got bored and vaporized away.

Take it philosophically. The only way to avoid such trolls is by stopping to use the web.