No. Usernames are your identity in the community and carry a lot of weight with others that read your comments. If you are changing your username you are effectively disappearing from the site and reappearing anew. Unless there is a grave and life-threatening reason to change your username, you cannot get it changed. If you are really unhappy with your username, you can sign up for an all new account.
(tags: username user preferences ) March 6, 2006 - permalink - back to questions

This can happen if you work at a big company or are using a big cache server (either university, cable company, or Google). It means the front page was saved by another member also on that system in the last x minutes and you're getting that person's copy instead of a fresh one from the server. You can not post/comment as anyone else, since your user information is pulled from your cookie information.
(tags: login username ) January 7, 2007 - permalink - back to questions