We upgraded security to deal with the spambot invasion (which continues even now). However, we've recently encountered some new problems. We're hoping they are easily solved, but until then we're back to approving new accounts by hand. If you've created an account you may not receive an activation email immediately. Be patient: Kujata, Melkir, or I will approve you or get an activation email out to you as soon as possible (within 24 hours).

Looks like Melkir's got it fixed again. Check your spam filter if you can't find your activation email in your inbox.