Indeed, this idea would not work at all.
Spam is different from a "Troll/Flaming board". We're not directly attacking users with our posts causing hostility in Spam. In a troll/flaming board, hostility would spill out, and cause a very unpleasant stay for users, especially if an argument even has the slightest spillover into normal boards, because we would ban their asses :p
Sorry, but we do not encourage the public ranting on other users on our forum. As far as I'm concerned, if you have a problem with another user and feel you need to take it out on them in a hostile, childish manor, then you can leave :p
And hey, maybe when you're done there will be cake.