Sorry, stuff just keeps appearing in my brain.
Probably not possible to out Emovie, MPB, Heritage or any of the popular poster specific sites. Anybody not noticing stuff there simply isn't paying attention and bidders must asssume a free for all.
Still, what about the case where someone questions the validity of a poster and it turns out to be legit, but just underpriced?
Is it ethical or unethical for a member here to tell an ebay seller that he has way undervalued and miscatagorized his poster and that the member doesn't want to cheat him?
All of my hypotheticals have shown up on this forum at some time, and could be considered outing.