The fastest way to change your username is delete your account first and then create a new account with the username you want.
If you have had your account for a long time, and you don't want to loose exchanged messages, published ideas, bookmarks, your premium subscription, etc. you can file a support request. In order to change your username we require all of the following information:
- Your current username
- The email address associated with your account
- The new username you want
- A reason for the username change