I won't say there aren't unscrupulous individuals out there but I think you fellows are getting frighted by your own shadows.
And with sincere respect I would suggest that when the scenario of Germanicon troops handing a Mosin and a Waffenamt stamp to Russianicon prisoners before sending them into battle seems even a remotely likely one to explain away unlikely markings on a milsurp rifle, it's probably a good idea to avoid shadows (or reaching for one's wallet) for a while.

Bottom line...I guess everyone's got the inalienable right to hand their money over to whomever they choose.