I have received this comment. I felt fairly objectified and annoyed, but also amused and curious. Notice that while not all of those are totally negative reactions, none of them are exactly swooning either. Of course, part of my frustration came from the sense that the other person was trying to exploit some flaw they perceived in my confidence. If this is not your goal, it might go over better. In many ways, it's nice to be admired *for* something when you've worried you could only be admired *despite* it, so that compliment could be flattering. On the other hand, stuttering is often a source of extreme frustration and emotional pain, so that such a compliment seems almost sadistic. "I find your shame and struggle hot. Genuinely!" Um, thanks? What about the stutter is sexy to you? To me, my stutter is intimately linked with limitless and unavoidable frustration. Being turned on by this seems like being turned on by watching people slip on banana peels or drop stacks of papers on a windy day. Explaining this even a little bit might also help your chances at pulling off this sort of compliment.