I added Movable Type's "nofollow" plugin to my blog tonight and it seems to work. I was surprised they had it working for version 2.661, what I'm still using. I think the "nofollow" attribute will cut down on spam in the long term, but I'm sure the bastards will keep doing it in the short term as there will be plenty of blogs that won't implement it right away, if ever. And the spammers will do their best to find a way around it.

I'm still getting a few comment-spam attempts but none have gotten through since I did the comment-test-question thing for comments. Two days, no spam, woohoo!