Well, topic says it all. How can MAJOR exploit like this go without a hotfix for so long?
All you need to do is get quest where Tyrael follows you(act 3,4), find any elite/champ pack, put MF gear on, die, go AFK 5 min, come back and pick up loot from elites Tyrael alone killed. I mean, they hotfix some chest farming, but let this go on?