Some of the ideas out there are pretty good. I like prashantrana's idea combined with greenhorn's idea. quite a few possibilities are there. I wonder if a panel of reputed members elected by the community can be part of this system to keep a tab and provide necessary important feedback to the admins and mods and take action against dealers going awol, and other issues too.
Edit: i guess giving the panel scrutiny powers, would allow them to be taken seriously. All this in the event that it can be accepted in the format.