@anajwo a backup account is usually made for someone's first account—mainly for emergency situations such as the owner's first account possibly being terminated/closed. other reasons for backup accounts being made can include being for followbacks or can just be a secondary account to post more books if the owner is a writer. in my case, my backup account is here for emergency situations. so if something goes wrong with my first account (this one), i can just move over to this one safe and sound :)