Quote Originally Posted by skaterger View Post
The thing is with a half decent tank the dps and healers should never need to move. It's not even a hard mechanic, running through the boss and turning him away from the rest of the party. If the tank doesn't move obviously I will, but that doesn't change the fact that is a terrible tank.
This is true, but there are those speshul people who like to follow the tank and stack on them, even when the tank is doing things right.

I'm rather thinking that this might have been the case in the OP's situation.