You have lots of identities, you experiment with them. And if you have an identity you don't like because it's subverted in some way or it's insecure or it's inappropriate, you just delete it and get another one.
Se tiene cantidades, se experimenta con diferentes-- Ud. puede tener una identidad, y no le gustó porque se la violaron de alguna manera, o es insegura o inapropiada, la borra y se hace a otra.