Okay, this is my first post on theese forums, I always was a watcher here, but I found a bug (I don't know if it's already posted before, if yes, don't read it, or don't whine about it).
The bug is simple, on the PTR's I've done it with warrior (need loads of HP).
Get a healer and a mage with yourself, and go to the duskwood dragon.
Get on your mount and engage the dragon, until you get the "Volatile infection" named disease. Once you got it leave combat (evade the dragon) and fast get some heals and get to max hp by the healer. Ask the mage for a portal to org, turn on shield wall if hp is running low, and then get to a player.
I don't know when, if you just damage him, or kill him, the guards of your faction will attack you, therefore you can't attack back.
The other part is about getting your own players in combat/killed. Ask everyone to heal you, that will move them all to combat, and when you get a divine intervention(which I got) or die, the guards will attack the healers who will get more heal, and the circle won't stop until all of orgrimmar's friendly healers aren't dead.
To reverse this ask all who is in combat to go out of the city ofcourse.
Yes, I'm aware that this comes from the bug how to kill your own faction etc.
proof: