Despite whatever Deej says to make people think they're looking into/considering it, they aren't right now. Well he didn't even say that much, did he? Because even if it were fair trading, like color for color, most people have a good amount of legendary/exotic gear lying around they don't use/have for the wrong class. They would then get a lot of the gear they wanted pretty quickly. Even though it would have been earned because of the color for color thing, Bungie doesn't want to do anything to expose the lack of stuff in the game, especially armor and weapon variety. If there were 20 different kinds of exotic auto rifles Bungie would be talking about implementing it, or would have already. Instead we have a game where LE/DGE ship supposedly exclusive can be found with another name in the game. I think there's actually a 3rd ship with the exact same skin at the shipwright's right now. That's all you need to know about trading really, they'll probably put it in there after 3 DLCs or something after they've been arsed to include some actual variety in the content.