Can I change my user name? How would I go about doing so?
Email an administrator (Tubadiva, Lynn Bodoni, Arnold Winkelried, **C K Dexter Haven** and Gaudere come to mind) and request the change.
Recalling a comment that I believe Lynn made – e-mail two or three administrators (in a single e-mail) to assure relatively prompt response to a request that needs to be made to them. For some obscure reason, the volunteer Moderators and Administrators of this board insist on having lives of their own, which may preclude their checking their e-mail and rapidly dealing with the problem.
Since you’ve only posted once with this name, I doubt they would notice or care much if you just registered another one.
Bad advice, Grumple. Email an admin, kemzai.
Do not give advice as if you were a moderator or administrator of this message board, Grumple Grommit. Ever.
As for the OP…yeah, an administrator can change your name…but why do you want a new one already? Why didn’t you pick out one you like in the first place? We will only grant one or maybe two name changes per person. If you really want a change, email me and a few of the other admins, and we’ll see what we can do. But we will want to know why you didn’t pick a name that you like in the first place.
Hmmmmmm, yep, we’ve seen you before, Grumple Grommit. You’re STILL not welcome here. Goodbye.
Lynn
For the Straight Dope
Can I guess??? Was it the Grapist? 
Nope, wasn’t the Grapist. It’s someone who used the name Rockford and some other names. Not a very active troll, but one that we’ve had around for a while.
Do you keep all his past Usernames in the Rockford Files?
Damn, how could I have missed that this morning!?