I dont understand how they can do it. As I have never actually duped an item myself, I have had to find some very good legit items over a long period to eventually trade for my 249s, sojs, 888s, etc I have only ever played within the rules set by Bliz and the game itself. Only by playing for over a year have i learnt which items are dupes and which aren't. A lot of people have no idea that this great bow they have just traded for something that looks incredibly inferior is a dupe and could be deleted in a matter of weeks/months/years (depending on 1.10 final release). If this does happen, i think it will be very unfair on uninformed or even illinformed people, and also people like myself, who have worked hard to find stupid amounts of great legits to trade for one supa dupe item.