/sigh
Somehow, I just KNEW this would be the first response.
Its not about trust. In 16 man, there is a good chance two of the same token will drop. If two people need the token, and you are running need/greed, its easy for one guy to end up with both items. We use ML to avoid this possibility.
Let me offer you a bit advice: Anytime you do, say, or type something, say to yourself, "Am I being a dick? If this were done, said, or typed to me, would I think the originator of the action was a dick?" If the answer is, "Yes," don't do, say, or type it.