Regardless, someone has to be the cop. Can you imagine if no DT members were tagging these idiots? Bitcointalk would have rules but no enforcement of them, and I suspect at least some DT members don't even think the existing rules are adequate. I sure as hell don't, which is why I give negative trust to account buyers & sellers.
In an ideal world account sales just would be banned. However, I'm not sure how it would be enforced in all honesty. At the moment they are communicating through the forum, but if it gets banned then its just going to go to external sites. Maybe, that wouldn't be so bad? I guess then though account recoveries could be even more problematic than they are now. oh wait, aren't all of them alts?? 
Hmm...this is awkward. No? 