Update to process as of Feb. 21, 2020:
Go to: This post for directions on how to change your username.
ORIGINAL POST 12-28-14:
I know I don't have a lot of followers, but maybe this will help someone else who browses through Journal Posts as I do. I've seen a LOT of people posting lately who have started a new account simply because they wanted a different user name.
This is not FA, peoples. The nice folks here at Weasyl provide a way to change your account username, which means you don't have to notify anyone you're switching. You don't have to re-favorite/re-friend people. You don't have to re-upload your art, etc.
It's explained in the FAQ's, that apparently no one reads (chuckle). (Maybe they should make it more prominent?...shrug) Copy/pasted for those who don't want to follow the link:
"If you need to change your username, send an email to firstname.lastname@example.org from the email address you registered your account with. Be sure to mention your current username as well as the username you would like it changed to."