Flaw in the drop system?
      

  It's very likely that magic find (MF) will be restricted to very specific uses. It would work on a per player basis, so if I have some MF it would affect what drops I see and not yours. For the sake of co-op we don't ask that you damage an enemy to receive experience or drops, only that you're within a close proximity. Asking every player to dama..
      

http://www.blizzblues.com/us/flaw-in-the-drop-system-27800499814.html