ad 1) It was created for SEO purposes, Google like it. It's not related to privacy, or you're confusing terms.
ad 2) In Articles you have author since J1.0.0 and no concerns. We will add option to change Author name to Custom Name (in near future) and this should solve the problem, so you would be able use your real first name ("Eduardo") or author of content ("AI"), and no more "secretadmin" ;p
Yes, I know... but now is not.
By now we both have to wait for implemenation of those changes. Or you can cut if off.