Exactly. Even with fireteam only trading, it would completely ruin end game. I am by no means a hardcore player and I already have what I want from the raids and don't run them anymore. It was all RNG. If I could have just traded with my team mates for a WoC when I got my 10th Fang of Ir Yut, I would have been done with HM Crota months ago. I would play this game even if there wasn't any loot because I just like the mechanics of it, but with loot trading it would take even more fun out of it.