i also hate spaming in chat room, but as long as a user's spam doesn't turn into flooding (repetitive messages more than once) i am afraid that is legal and you can't demand any action at all.
Spamming in forum is okay as long as those messages are placed in the right subforum (Player transfer ads).
That said, if peopke doesn't brake the rules, why should they be banned?
It would be great if people would care other user's right to use chat room only for chatting, if people would always hotlink their players in their messages, we would avoid those problems just filtering out, but people doesn't seem to care if they disturb others, so they hotlink to forun or just place their player's ID without a hotlink at all, as a result spam messages can't be avoided... a user suggested to filter out foreign manager's messages sometime ago, i am starting to think it's not a bad idea.....