In an effort to combat the hundreds of spammy comments, you must now complete a simple arithmetic problem to post a comment. This should ensure that only humans can comment, and only humans who can perform arithmetic. Those of you who cannot perform arithmetic may use the calculator that comes with every operating system known to, um, me.
WordPress has the coolest plugins.
Updated to add: Since some of you out there are, apparently, reading this post, I thought I should add that the plugin I am using is called Did You Pass Math? and more information about it is available at http://www.herod.net/dypm/