The general concept behind a digital pseudonym is to build coherent relation to identity without doxxing oneself. Doxxing is the act of publicly revealing previously private information about yourself.

For this pseudonym to be useful it needs to show a proven track record in order to build reputation. Only then an employer can hire you for a freelance project or will your followers buy some of your books. Your pseudonym has to be able to build trust through its actions over time.