I understand my views and opinions must sound moronic to you, your view of wow is that of an extremely rudimentary perspective, so anything that challenges those ideas is rejected as moronic.
What it boils down to is, there are strategies and tiers of player ability that enable faster, more efficient, game-play (which have consistently been rejected by the OP when pointed out). Generally these techniques are beyond the capabilities of the average tank and PUG to facilitate. The idea that some things don’t need to be tanked and can be permanently slowed and kited or more efficiently dealt with by area damage while tanks prioritise the more menacing targets, doesn’t register to a bad tank. They are locked in the “no I need to build threat on things and they need to wait”, “the group must respond to what I do rather than me respond to what the group does” <-- thats the mentality of a bad tank.
If its a trash melee mob, it will likely die before it even lands a hit on that mage going ham, laying down blizzard (they will nova once mobs are close to them, then rinse and repeat)… that mage has been doing exactly that for 10-20 levels, for some tanks its ego crushing to realize just how unneeded they are in early dungeons, for the good ones they will do what they can to make sure pulls go smoothly. This does reverse in higher tiers of content but its symbiotic, in that, if you cant learn to function at a high level in a group early on, once you hit higher content you will continue to struggle when you cannot build threat quick enough and are replaced by tanks that can and do go the extra mile.
To me thats what makes wow fun, the fact that you do not have to follow the rudimentary process of CC tank and spank one mob at a time but can instead reach higher pinnacles of ability which result in quicker dungeon clears.
The good dps will want a tank that is capable of handling it and when they get stuck with a nervous or inexperienced tank, who frets and cannot handle the dps’s pace and makes what should be a speedy dungeon 3x as long… its just a painful experience all around.
I am in a very fortunate position though, where as a general rule anyone near my level can be assumed to be above average skill and I have had nothing but enjoyable experiences in my dungeoning exploits.