Funny thing it happened to me...
Got whispered only for last boss fight and after wiping a bit because of lack of skill of dpsers mostly the magic ring drops. A Melee DPS shammy hit need without breaking a sweat (I'm holy priest). I roll 4 he gets the ring. Whispered him saying ninja and he answered he's respeccing resto (could be in three months as far as i know). Then I was on his ignore list. Spammed in Trade channel he was a ninja and ppl defended him!
Healers should have priority on healing items, I dont need MGT heroic chest for my shadow offspec if some else's main specced needs it.