What have you done?

[Quri]

Using our Mechanic/stance is selfish? I could say the reverse and say not using it put extra strain on Healers cause they have to compensate for the extra damage the tanks are taking.

You could tank without it but why would you want to? Unless you want to see how you do on FFlogs which in that case I'd say you're a WAR or a DPS that got lost on class selection.

But healers where fine with tanks tanking in dps stance. So long as you use cooldowns on tank busters. This coming from an ultra casual player.