But no one is really going to kill 500 Revs hoping one of them might drop Claws, will they? How will they know what items the Revs hold? They won't. Sure, they can kill them with they vain hope, but that would be kind of senseless, would it not? You would be surprised. Besides, the point isn't if people will, it's whether or not people can. They COULD kill Revs for claws, and if that means saving hours on quests and killing easier monsters, people will do it. Of course, claws are just one example. This could apply to any boss-obtained items, take dragon legs for example. Didn't the OP state that in order for a Rev to drop Claws (to stay at your example) said Rev (or another in the same world) first has to kill a player losing claws? So in that case, the Claws are still coming from a Tormented Demon, be it via a player dying in the wilderness. Or am I missing your point here?