I’m getting a surprising amount of spam comments on this blog. Last month it was tipperary-ford-auctions.murcielago-springs.cn/chevy-engine-vomit.htm, now it’s plain old “buy v1agra”. WordPress happily blocks all of it all by itself, but I have this paranoid distrust for automated systems with zero human interaction, so I get 173 emails a week from my blog about comments held for moderation.
CAPTCHA is a good solution for this sort of thing; the onus is on the user, not the server, to prove they’re legitimate.
Therefore, I’ve added reCAPTCHA my blog. Apparently it’ll keep my comment spam down *and* help computers read old books. I haven’t played with it much, so if it annoys anyone in the slightest, email me and I’ll try to find a better one.