Sorry about this. My anti-spam "improvements" resulted in ALL new users being blocked from commenting for a few days, where "new user" means "user with fewer than three comments".
Should be fixed now. Please let me know if not, or if you have other suggestions.
Just email firstname.lastname@example.org
Email (Required, will not be visible)
Username (Just pick a name if you're new)
Watch comments by email
questions or suggestions? write email@example.com