DEAR DPS who pull hate off the tank:

[Prufinnor-wyrmrest-accord]

@Mystí-stormrage

As a long time healer, this is what happens:
Tank pulls 3 mobs. DPS lays into a mob that the tank isn’t targetting. Pulls the mob off the tank. Healer tosses a heal on that DPS and gets healing aggro.

You forgot the part where the dps makes zero effort to run to the tank.

Ah, you dealt with that later in the post.