Trading would demolish the "artificial scarcity" scam and reduce your time playing the game. Bungie will not have that, because it's bad for their investor information paper. The longer we grind the higher the artificaly extended game time. Investors think they invest in a company with good games, but in reality it just frustrates players and will destroy Bungies name and the player base. Marketing people and banksters are the bane of modern society. They try to milk and trick us all the time.