I was speaking, mainly, of sets that have been sold outright, yet never removed. I know several of these. But, to intentionally deceive by stealing cert. numbers is even WORSE. Makes you wonder: 'what kind of satisfaction could one get from that??' Trust me, though, I DO believe you and and I know that has also happened, which is why I think that it's good that NGC/PCGS have cert. #s hidden, on the Registries. I remember, in the early days, they weren't obscured. Makes you think TWICE before posting a slab shot.