Give you three options: 1. delete all your posts the same way they would be deleted if you went to them and pressed the delete button. 2. Anonymize them (repl

Give you three options: 1. delete all your posts the same way they would be deleted if you went to them and pressed the delete button. 2. Anonymize them (replace user name with "deleted user <randomnumber>"). 3. Keep storing the username After that, delete all other data (profile, settings, e-mail, password hash, ...)