I have no qualms about the guy promoting himself as long as he's an honest dealer and clearly advertises the correct persona of himself, so that he's not perceived to be someone he clearly might not be. Is he an honest dealer? That's the question that needs to be addressed! I don't know him so I can't say.
But what I don't like, and this is from my perception from seeing and reading things from his own self serving hand is himself giving off the persona and perception of someone he clearly isn't without correction. Using words like found, uncovered or discovered under the disguise as a hunter of history or "History Hunter" when in fact he didn't go hunting for anything. These items were clearly brought to him.
If this passport is fake then why is he still promoting it as genuine to the world, and then why not correct it? See his Wikipedia page at; Gottlieb
