How does signing up with Facebook work?
As an alternative to the standard sign-up, you can sign up with one click via Facebook. Your rankade user will be created using your Facebook user. Afterwards, you'll be able to edit all data in your profile (except for your email address).
You cannot sign up via Facebook if you do not authorize rankade to read the email used by your Facebook account. If you receive an error message, you can make your email address available in your Facebook preferences.