TL;DR:

Shortage of tanks, myth? Tanks are everywhere!
Oh it's just the DF that's short of tanks.
But why?
Well people don't like the pressure and the heat.
We should encourage newbie tanks instead of asking them to perform like vets from the beginning.
Hey if you can't take the heat, don't try be a tank.
You're adding to the problem, not contributing to a solution.
So what? Tanks have always been leaders, if you can't be one, don't tank.


Basically this.

And my reply is the same: we're trying to find more tanks. Hope you realize you're barking up the wrong tree by insisting that tanks should be an exclusive uniform breed of players?