Look, this is the bottomline: Something, like a stutter, by itself is not and cannot be a turn off. But what is a turn off is how you, as an individual that suffers from it, deal with it. This is where you can play the victim that cant make their life better or you can "own" it where you show everyone, including the girl that youre one badass motherfucker that doesnt exactly ignore he has a stutter but that you accept it and deal with it and dont let it ruin your life. Do public speaking, chat up girls, give presentations, do things that are exactly the opposite of what a stutterer would do. Thats what turns them on.