You Tank You Pull is only acceptable in one case.

When the DPS takes a add during a pull to then stand in Narnia while the add is behind a object or outside of Provoke range.
I will not leave the healer Bubble and placed aoe field to grab that single add.

You pulled it, you bring it back to its friends.


Often the DDs pulling do not know how to pull.
They just attack the monster and let them run wild everywhere. That can lead to much more stress for the Tank and Healer.