For the "fun" of it, and to address one of OP's claims directly: he's right in that there is a lot of "butting in" by posters who contribute no meaningful dialogue to discussion of the topic at hand. However, this is not limited to these boards in particular. It happens in every single section of the forum. True, some of it is from signature campaigns. But some of it is from trolls, some of it is done in anger, and some of it is from people who feel the need to post their thoughts even if they are less-than-intelligent contributions, regardless of whether or not they are in a sig campaign.

In short, nothing is going to change that will satisfy OP. He probably just doesn't want people tagging cheaters and scammers, anyway.