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ok, but how many comments are you losing because people don't want to fill out a captcha? i've used defensio.com for filtering comments on my site with no capt
by there 16y ago
ok, but how many comments are you losing because people don't want to fill out a captcha?
i've used defensio.com for filtering comments on my site with no captcha and rarely ever get a false positive or negative. false negatives are easy to spot, and users can manually override false positives by supplying an email address to get a confirmation link (which gets fed back to defensio as a false positive once clicked).
- jfager 16y agoIt's a tradeoff, sure. In my case, I'm perfectly happy to trade a few comments from people who don't want to deal with a captcha for never having to manually deal with spam. YMMV.
- mike-cardwell 16y agoThere are better ways of reducing comment spam to near zero without resorting to captchas. Here's how I did it: https://secure.grepular.com/Blocking_Comment_Spam_Using_ModSecurity_and_Hidden_Fields https://secure.grepular.com/Blocking_Comment_Spam_Using_ModS... It's still working now.
- mseebach 16y agoThat's great, pretty much any home-rolled CAPTCHA will perform great, simply because it's not worthwhile for spammers to design an attack. If that, however, was the default anti-spam mechanism on, say, wordpress installs, it'd be automated against in minutes.
- mike-cardwell 16y agoDefinitely. If more people rolled their own, the spammers would be screwed.