I have seen alot of people talking about duped stuff. I know what it is, and how to do it, but how do can you tell if an item is duped, or is there no way? Also trading value wise, what are they worth? I was offered a max's and an earbuds for my bmoc (I was pretty shocked), I pretty sure that they are duped, but how do I tell? And if they are, what do I do? I don't want to report them, but with more duped stuff in the market, it will have a negative impact on the item values, and have a negative impact on the tf2 community. Thanks for any feedback.