Already got an account? Just log in. Forgotten your password? Reset it.
Your username, once chosen, can only be changed by The Administration. In their infinite wisdom they feel that easy and prompt identity changes are bad for a site's sense of community.
Regardless of what you say here, we will never sell/distribute your email address.
Basically the ToS comes down to "don't be an asshole". We think that's fair, don't you?