Mass pulls: don't do this.

[Izsha]

but its possible that i only have the heal mid pull BECAUSE the tank stops to hit each mob, while a tank that pulls a whole group from some distance and keeps running might not take much damage (or any). In the latter case i can stay out of combat longer and reg more mana. Im not saying its better but at least in my opinion, its not necessarily wrong to pull like this.

That's the whole problem. No tank speed running should ever stop for any reason until all monsters are grabbed and it's time to kill. Tanks that 'stop to pull' are doin it wrong.

Generating threat and running are not mutually exclusive activities. Do both at the same time. Everybody wins. Tanks take less damage because they don't stop. Healers are safe to regen/cure without loosing hate. There's no downside. It's just better.