Somebody had a great idea on our forum:
Nobody uses the "Thank (0)" feature; I mean look above: you posted to thank me for my suggestion but did not use the feature did you?
That button could be a "Hide that #$%&" button; after x of them (of course from x different users) the post gets hidden; when a poster gets y of his/her posts hidden, the poster gets banned for z weeks and gets his/her ban count increased by 1; you get the idea...when the poster gets banned a given number of times (s)he gets permanently banned.
NOW let me tell you: the new button will be used A LOT!