In the games I've played, we remind each other. "Oh, remember, I don't use weird for opening my brain, I use hard." But there are other reasons to roll weird, they just don't come up as much for certain kinds of characters. Like, the angel you're talking about still uses weird for healing touch (if she's taken that move).
I think it's kind of a dick-move to highlight someone's unused stat unless they're way out ahead on XP and you're trying to govern them. I wouldn't cross them off as possible highlights though.