I don’t know if the spammers are getting smarter of if the new version of WordPress is more vulnerable to spamming, but more and more comment spam is getting through my filters. I have thus been forced to take the irritating step of forcing you to enter a security code before you can post a comment. Not sure if this will cut down on spam or not; I’ll keep it in place if it does. Sorry for the inconvenience.
Update: OK, that didn’t really help matters, and I think I’ve found something else that does, so I turned it off. Go about your business.