It's a fickle thing, using untruths to elude something like that. I think you're just adding unnecessary overhead to your already ongoing struggle. If people should hear your stutter, and they'll never see you again, what difference does it make? Or for that matter, if you stutter to people you know, what difference does it make? Don't deny yourself expressing your name. Seems like a thing that might be unhealthy in the long run. :)