Comment 49 for bug 857651

I think distros should be able to have their list which includes adm, lp, and nobody, and admins should be able to augment the list with their own users that could include tarball installs of 3rd party software and specific real users they want to conceal.

I'd say the distro file would go in /usr and the admin file in /etc. Note, it would be bad if the admin file overrode the list instead of augmenting it.

I don't think config.d makes sense. we have /var/lib/AccountsService/users/foo already that stores metadata about a specific user foo. that metadata could have "exclude from user list" or "exclude from control center panel" in it, I suppose.