Why do you think people expect max dps? Is asking someone to try so and so forcing someone to max dps? So if I, as a tank, start my rotation without using any enmity ability (which is possible as a WAR) and a healer or dps asks me to begin with a rotation that generates threath, I can just blunlty ignore the guy? Or say I rather keep this rotation beause this is how I like it? Sure, it's possible, dps just needs to wait 10ish seconds to attack which isn't all that long right?

Suddenly this is different, because now it's a tank isn't it? If it's dps, who cares right? As long as you get through the dungeon. There is no point in trying stuff in an MMO. Everyone should just play how they want because if you ask someone to do fire I instead of fire III, you instantly brake their casual approach. (this is just an example, I don't play BLM so forgive me)

Now let's get real here please...