So does this swing the other way for players too? Do others allow players to narrate extra effects beyond dealing damage?

If and when I get around to running DW, should I encourage my players to add a little flair to their attack descriptions that might have effect beyond damage?

Slight tangent, how might you handle special maneuvers that don't necessarily deal damage, such as disarming or grappling? I realize this is fertile territory for custom moves, but how have people handled this on the fly? I'm guessing an application of Defy Danger might work.