Quote Originally Posted by TouchandFeel View Post
To expand on this, I have ended up in DF groups with tanks that would literally just stop and wait upwards of 10 to 15 seconds before pulling every single individual group of mobs. I have had tanks that do this and spend the wait time slowly marking every single mob in the group first.
This is one of the biggest ones that get me. I don't mind if its a low level dungeon where the DPS might not have AoE yet, or where the tank doesn't have their stance. I will usually just DoT everything and if I end up tanking as the healer, oh well, the mobs do basically zero damage anyway. In high level dungeons where everybody has AoE and tank stances are a thing, it doesn't make sense at all to single target everything. If I see it in a higher level dungeon (50+), I'll usually throw out some Holy spam to see if they get the hint once their enemy list goes all green/yellow instead of all red. Some do, but some still keep single targeting and marking everything. I've ended up tanking all of Baelsar's Wall minus the bosses on WHM because of a tank like that.

Also the ones that sit and wait for everybody to be at absolute max HP, MP and TP before pulling a boss. Bonus points if they sit there and wait on the healer's shield buff to wear off before pulling. Like why? Divine Benison isn't going to pull aggro like that...