I’ve turned off user registrations for a few hours, to cope with the avalanche of spammers hitting the site lately. We’ve had over 200 new registrations just today, all of them spammers.
I’ll turn it back on eventually. Sorry for anyone who is trying to legitimately sign up for an account. If you want, you can e-mail me directly at email@example.com and I’ll set up an account for you.
Or you can wait until I turn on registration again.