Since this thread is already passed deletion, I will just add that there was a one-time allowance for anyone to change their screen name at one point, but I believe the caveat might have been that it had to be to your real name, not 100% sure on that. I am sure one of the mods could do it easy-peasy for you, and will gladly help you out, it is more a matter of opening the flood gates to all the requests from people who like to change their names repeatedly, for whatever reason. For that, I can understand why having one linked identity without the ability to change it yourself is a good thing, but we have all been there with poorly chosen logins and such from internet eons past.