Had an old kingdom group the other day, first tank dropped as we zoned in so dont know what he was like.
Second tank was a Pally
With priest buff he had 22222 health (I was impressed with this)
He wasnt Def Capped
He didnt use rightous fury until we pointed it out
He could NOT hold threat
Only gear change between Prot and Ret was weapon/shield.
I was healing(Disc) and damn, I could not do reaction healing, I had to spam Flash heal just in case he took damage. This lead to everyone except me and the tank dying on the first boss (I kept everyone up for about 2/3rds of the fight, with pretty much everyone taking a turn tanking, Priest, Mage and rogue all go squish very easily)
The random rogue in the group dropped when we wiped and we got in a friend to tank and let the Pally DPS.
He got 2 upgrades of the final boss, we said grats, told him to look up what the def cap is, and went on our way. I hope he learns, seemed like a nice enough guy apart from the fail gear.