MT-Bayesian is Destructive

A couple months ago I installed MT-Bayesian on my blog, because I'd been getting about three spam comments a day. Since I list new comments on the front page, it really bothered me to see explicitly pornographic comments presented so prominently. So I started looking around for spam-battling tools and I eventually settled on MT-Bayesian. Its main selling point was that it filtered comments immediately, instead of waiting for me to get around to doing a manual scan.

However I just noticed that many of my most cherished comments had been flagged as spam while I wasn't paying attention. For example, in this entry, nearly every comment except for the ones I wrote had been filtered out. It read like one end of a telephone conversation.

I hadn't realized that MT-Bayesian would filter out old comments, but I suppose I should have realized that that was only to be expected.

Anyway, I've decided to disable the filtering of comments on individual entries. Instead I'll only filter out potential spams in the listing of new comments on the front page. And I'm mentioning this as a warning for anybody else who has MT-Bayesian installed.