Rather than spend a lot of my precious time trying to explain how horribly misinformed the comments in your second paragraph are, I'll merely say this, you have no idea what you're talking about and have either never played another MMO style game as you claim, or you were completely oblivious to everything that transpired around you while you did. That said, I do agree with the points you made in your third paragraph, but again, Bungie can address most if not all of those issues with a smarter and more rewarding RNG system. An in-game trading system is not necessary to fix those issues and will only create new problems.