• As We All Know that Codechef isn't have any functionality to change username, or it doesn't allow to change username unlike codeforces allow during christmas.
• sometime we don't like our username or just want it better and meanwhile don't want to loose submissions and ratings also, I think CodeChef_admin should think over these feature, atleast they should allow to change username once after registering.
• Many people are facing issues with codechef regarding contests, replies or else and along with this point should be considered.

Thank You.