At Ask Me Help Desk you can ask questions in any topic and have them
answered for free by our experts. To ask questions or participate in
answering them you must register for a free account. By registering you
will be able to:
Get free answers from experts in any of our 300+
topics.
No. Once you pick your username it is set in stone.
If you have a valid reason for changing it, you can always ask one of the Admins (Curlyben or RickJ), but even then I dont know if you would be allowed.
Thats ok, but you may be surprise I get requests to do that to at least two people a week. and I am sure the other moderators or admin must do some also.