I've now updated the forum registration page to really simplify things so that no spambots will have a chance of getting in. Now rather than filling out a form, users have to send me a legitimate email to
webmaster@i-mockery.com requesting an account along with what user name they'd like. Now anybody can sign up for an account and moderators won't have to worry about hordes of spambots any longer.
Problem solved.
To any new users: if your account isn't approved within 48 hours, send me an email and I'll make sure the account gets created ASAP.