Cookies for Comments is a WordPress plugin that can be used alongside Akismet to significantly reduce or even kill completely comment spam.
Version 0.5.4 adds a rejections page in case human visitors trip over the cookie check. You can modify the message shown to visitors and it’s obviously only useful if you don’t use the cookie check in your .htaccess file.
It happens sometimes, usually when the visitor has cookies turned off, but very occasionally for some other reason. (That I don’t know of yet)
This plugin isn’t a replacement for Akismet as it is easily bypassed. Thankfully 99% of spam bots don’t bother checking so this plugin works quite well!
Hey, your SVN setup is wrong. You have Stable tag: 0.5.4 in the readme.txt, but don’t actually have a tags/0.5.4 directory. I’m surprised it’s working, honestly. I think it’s defaulting to the trunk directory because of this, but this is unsafe and might not work all the time.
I forgot to tag it. All fixed now and the download link should update shortly. Thanks Otto!
Love this plugin, and recommend it a lot. This + Akismet absolutely killed my spam.