Submit your data here to use it in the front page.
After you have added your badges find your username in the Username dropdown.

Username is used in the main page to select your data. Email will not be displayed and is only for user identification when you would like to delete your data and to protect your username so no one else can use it.
Username is not stored. It is only used for fetching the earned badge data. Password is not stored. It is only used for fetching the earned badge data.