@Revets315 Awesome, glad you enjoyed it -- we're always looking to add new and engaging tank mechanics. We know "taunt at X stacks" is bland- Watcher (@WatcherDev) January 14, 2014
The story behind this is that the taunt at X stacks model, that was so prevalent in Dragon Soul, in Normal Mode difficulty and some heroics, was the thing that made me switch from tank to healer. I even wrote about it, to express my frustration. Commenters at the time thought it was an attempt by Blizzard to make tanking more accessible, and to increase the tanking population. But, for me at least, easy-mode tanking drove me away.
And the "taunt on X stacks" model has far from disappeared as we've moved through Mists. While there have been fights like Will of the Emperor that really demanded a lot from tanks, many others didn't. Stone Guard, while it was another taunt-swap, at least required some more engagement. But there's still far too much of the taunting on X stacks. Writing the Bosses in 5 Seconds guides, I just have to figure out which debuff, and how many stacks for many of the bosses.