I remember in 1234 how she threatened Doom to explode a bunch of force field bubbles in his head if he ever bothered her family again.
Thing is, Sue is actually a kind of telekinetic. She's only less dangerous than Jean Grey in that (a) she can't read your mind as well, (b) the Phoenix Force ain't there, and (c) she's fiercely level-headed, which is the real point. I'm sure they've tried "Dark Sue" but I bet it looked stupid. Sue can handle a lot and is very restrained given what she could do. But threaten her family? You die.