DPSing as a healer

[Rennies]

and nobody expects a tank to stance dance. they choose to make 20% less damage when they use the tank stance. but they are still moving, yeah, so they are not lazy or selfish or whatever. i can tell you i tried tanking and it is less work than staying around watching HP bars and being ready to heal.
so where is the rant about tanks? just pressing 1-2-3 combo, spamming one button for aoe and sometimes popping a cooldown...

The difference between a stance dancing tank and a tank-only tank is far less significant than the difference between a 0 DPS healer and a skilled healer. I'm still leveling Dark Knight but when my gear's up to par, I'll definitely pay attention to when I can throw out Grit for a bit and rely on certain cooldowns to keep me afloat while I throw out Scourge and Blood Weapon enhanced combos.

Also, what tank only uses their 1-2-3 combo and one aoe? I've only played Dark Knight to a high level but they have 3 combos, 2 different aoes on their GCD, a high potency single target DoT, a ton of oGCDs to be used between combos, and on top of that there's the MP draining power boost (which I love maximizing usage of). I can't really rant about a role which I lack experience in.