Not all of that is wanted. There is a huge split of people that want trading versus people who don't, for example. My Heart of Praxic Fire made me soooo damn happy when I finally got it off an exotic engram from Xur. It would have been lame to simply trade my useless exotic titan chestpiece for the Praxic Fire. It would have taken a lot of the excitement out of getting a new piece that I've wanted for so long. Trading would make this game boring quickly. In a game where gear and weapon accrual is a big part of the game, and often crucial and time consuming, why in God's name would you want to be able to get it all immediately through trading? Then what? Also, consider the millions they see playing for the same amounts or longer each day. Then consider the measly hundreds or maybe thousands that gripe on the forums. Bungie is not going to give every child with a keyboard what they want. They are going to try to improve on what is already clearly working well, and attempt to fix what isn't. I think they've been fairly more communicative than any other game company I've dealt with.