Wrong? Not at all. But I'm curious to hear some more of the context from which this question arises.
I think it is particularly evil to make your sub outline her own future punishments... because they're far harder on themselves than most doms would be. And by evil, I mean excellent.
It's also wicked to make them tell you their favorite rewards so you can teasingly withhold them...
And by wicked I mean evil and you know what that means.