Not bad, but it will never happen. The game designed around a very small amount of gear and a broken RNG mechanic makes obtaining said gear a total crap chute. Since the storytelling is nonexistent and the actual content is minimal, Bungie relies on the desire to obtain that gear to keep players coming back and mindlessly hashing out the same tired missions again and again. Anything that might accelerate a player's ability to obtain that gear is never going to see the light of day and your suggestion falls squarely within that category. People really need to let the dead horse that is the desire for trading just rest in peace. Bungie knows you want it, they just don't care.