The SSO login process may get you to a forums account with your real name (or appended with a number) if you used it as the Ubuntu One account name, please read this sticky again. While we are happy to change it to something that allows better anonymity or that matches you usual nickname on other websites,
  1. Make sure that any change you request is what you want - we will only change it ONCE.
  2. Make sure to give us 3 alternatives, we will not look without there being 3.

Previous sticky here.