I've been trying to create an account on the main site for the past week without success. I fill out the registration form successfully, it sends me a confirmation link via email; but the confirmation link (which does appear to be a valid confirmation link, with a random hash and everything) just ends up redirecting me back to the registration form with an error message at the top reading "Server is down or in process of restarting. Please try again in 5 minutes."
I've tried waiting 5 minutes, 30 minutes, an hour, several days; to no avail. I've verified the main page indicates that the server is up, but it doesn't seem to matter. Attempting to log in anyway, despite the apparent failure to validate email returns a message that the account doesn't exist. I've tried filling out the registration form again (with all the same details); which appears to work and dutifully sends me another confirmation link which also does not work. I've tried filling out the registration form with a different username/etc., which also does not work. I've tried multiple different browsers, both with and without extensions like adblock, to the same result.
Is account registration broken, or is it me?
(Screenshot of the error message shown upon following the validation link from the email is attached.)