Date: 01/16/07 (Java Web)    Keywords: spam

I have experiemented with all the available WordPress plugins for comment spam protection including but not limited to Bad Behaviour, Spam Karma 2, Akismet and built-in WordPress features like blacklists and moderation queue. The key problem with all of these plugins is high rate of false positives along with some false negatives too. In plugins [...]

Source: http://blog.taragana.com/index.php/archive/the-big-void-in-wordpress-comment-spam-protection/