Sad thing is it's not a hoax, had a friend use one of his many accounts to test it and he came out with 2 legendaries off of Azmodan Inferno 5stack/valor and 1 legendary off of Diablo Inferno 5stack/valor.
I'm guessing its a blizzard screw up like the usual loop hole and it is an exploit because the items are on live and Blizzard will treat it as such. They will ban accounts that are caught doing this in their system. So use at your own Risk!
Because 1 friend is solid statistical material right?
Bidding starts from 200m.
Not bad for a first roll.
Got the high dex AND the armor!
Bidding from 25m, buyout 50m.
Selling this beauty, starting bid at 20m.