Folks,
The only person that can change someone's username is me, and I usually do it under the following circumstances only:
1. Ham Radio Callsign Change
2. Personal information is revealed in the username and the person didn't realize that would occur
This is a manual process, and it's a pain in the butt to deal with 10 username request changes daily. Unless you have a real need (other than the wanting to change your username because the direction of the wind is from the north today), then please just stick with the username you chose.
Thanks