Tank Stance

[BillyKaplan]

But I guess some people forget they have a purpose.

Or just that they exist. I just ran into a sprout healer who had no idea what role actions even were. This game assumes a great many things about what its playerbase knows, and fails rather miserably in explaining them to begin with.
Tank stance, on the other hand, is inescapable. Assuming, of course, comparable ilvls across the roles. There's little an undergeared tank can do against an overgeared dps save to provoke off of them. Which is also sadly a role action.