This is a tuff one, IMO... as I see the OP's point, and in some ways such a thread is no different than the threads started every day about this buyer or that seller. Simply the condensed version. And, there is an NPB thread, so by not an NPS thread?
SO... the idea has merit. However, my concern is of the occurrence that it becomes retaliatory. AND... I don't think a poster can just post a seller's ID and no explanation. Which will that lead to some posts becoming "a thread within a thread"...? IMO, comments to a post must be minimal or the thread itself becomes derailed. It's simply for posting ID's and a brief explanation.
All food for thought and comment.
My main objection at this point would be that the title is simply too inflammatory. (no offense to OP) IF this thread is to survive, it's need to be titled as simply and as "neutral" as the NPB thread. "Report NPS". And the posts that follow would have to remain non-inflammatory.
Further thoughts??