Quoted from TheLaw:
I'm sorry for anyone selling a game these days. The Sherlock Holmes investigation that's gonna go on will be the worst.
I don't think that will be an issue. When your saving serious cash you expect wear and tear. The people posting pins for sale for what they paid including the tax are going to get beat up and rightfully so. It seriously sucks for NIB buyers though I would be pissed. These issues on a used pin would mean nothing to me.