This is a very controversial topic for me, as I am on both sides of the argument. I want trading because my buddies get gear that they will either never use or not use for a long time. One friend recently got an legendary weapon that really wasn't his kind of weapon. Me? I love that type of weapon, and since we're good friends, he would have given it to me for almost nothing, though I had a helmet I want to give him. On the other side, earning our gear makes it, feel more like we actually have it, that it was ours and we made it so. Bungie just needs to better the loot system.