Well that didn’t take long. Less than 12 hours after I turned off the captcha system for SEB and we were hit by a comment spammer looking to sell penis enlargement pills. So I’ve turned captchas back on for the moment. I could also make use of a comment moderation system that would require me to validate all non-registered comments, but I thought I’d ask which system folks would prefer. Certainly moderation would be a motivation for folks to register, but I’m not particularly concerned about having folks register. There’s at least one reader out there who’s proxy has troubles with the captcha system, but he’s said he’s willing to live with it if he has to. What do the rest of you think? Should we stick with the captcha system which allows near-instant replies or switch to comment moderation for unregistered comments?