I've responded on here-- but I want to be clear, also for anyone else with this question-- do you mean trade in the game, or do you mean trade things outside the game for money? If A-- I think it should be done, it's socially wise and eco-system smart to ensure a better 'social life' in the game and longevity for it. If B-- Bungie is not responsible for that, let people do what they want to do-- it isn't a concern of Bungies or anyone elses. Tired of people trying to control one another.