If you want to change your nickname on the CCM forums, go to this link:
What shall result from changing your nickname?
- http://codes-sources.commentcamarche.net/profile/change_nickname. Please note that: You are allowed to use this feature only once, so choose your nickame wisely
- Your will keep previous questions and answers on the forums.
- Redirection of your old username to the new one.
Alternatively, you can unsubscribe and then register again
with your a new nickname, but you will lose your account history, private messages, and statistics.