****** spammers
It appears as though somebody with 10 minutes and a desire to make some fast cash has written a little script to spamvertise in my comments. Well, I don’t take that lightly (putting hundreds of junk records in my database just doesn’t sit well with me). To attempt to block this, I’ve put an extra little check to make sure the commenter is human. This means you’ll have to check an extra circle (answer a yes or no question) when you enter a comment. Hopefully it won’t be too painful for you (it actually doesn’t even matter what you answer; they’re not stored anywhere).
Thanks for the comments so far!

Comments
I do like cheese.
Very interesting way to deal with comment spammers instead of blacklisting. Sort of like a little brother of a captcha. Nice.