We all know a tank is great for PvE. There taunt is the best skill and saves many other players repair costs. But what about for PvP? Our taunts do nothing so for PvP it's useless and we have to remove it from our quick bar.
A few ideas on what it can used for PvP is that if the Tank is to cast taunt and whoever the Taunt is on or get's put on the person automatically switches to being selected to the tank. Another Idea is they can hurt other players but they do significantly less damage with the taunt on them so there only choice of a target to even hurt would be that tank.