As I said in the other thread, ban them if they are generating massive spam. Nevertheless, it's not only 1xBit users who are generating spam. There are more campaign participants here who are generating spam as well. Are you concerned about them or it's only 1xBit? I would say apply the same rule for everyone regardless of what they are promoting.
fuck off with your local rules, I answer to the forum's global rules.
Global rule has the rule of setting up local rule by OP.