investigate why 20+ users are created each month and maybe cleanup gitlab users
i was looking at the cohorts page in the gitlab admin, and we are getting a steady stream between 20 and 60 new users each month, according to that page.
are we really getting that many new contributors in the tor project as a whole? is this still people onboarding to gitlab from trac? how are those accounts created?
on irc, @gaba suggested that we should cleanup users, but i'm not sure that's the proper approach: it's much harder to remove or disable existing users than it is denying new ones...
i thought registrations were closed, so i'm a bit confused by this state of affairs.