You know how funny life is sometimes? Your program works great until you tell someone that it works great, then it crashes hard. Or, in my case, I turned off blog comments because the spam was driving me nuts and no one has been leaving real comments anyway. The very next day, I started receiving some good comments on a couple of my posts. <Sigh> So, I'm turning the comments back on, and will just have to zap the spam as it comes in.
On a better note, I noticed that the .Text engine may have a solution. Apparently they have a version that features comment moderation, along with one of those Security Code features with text inside a bitmap. This might annoy some users, though. A couple of blogs (http://www.peterprovost.org/archive/2004/08/13/1763.aspx, http://scottwater.com/blog/archive/2004/08/08/12888) mention negative feedback.
So what do you think? Is comment moderation the answer, or should we put up with having to delete comment spam multiple times a day?