https://venturebeat.com/2018/03/23/probeat-deleting-facebook-step-by-step/
bonus https://venturebeat.com/2018/10/04/facebook-bug-prevented-users-from-deleting-their-accounts/
origin - https://www.pipiscrew.com/2018/10/deleting-facebook-step-by-step-facebook-bug-prevented-users-from-deleting-their-accounts/ deleting-facebook-step-by-step-facebook-bug-prevented-users-from-deleting-their-accounts