Akismet

One of the most common forms of comment and pingback spam right now is the relatively subtle, ambiguous kind — short phrases or questions that are not obviously spam, at least on face value. The more sophisticated spammers have progressed from old standbys like “nice post” and “great blog”, to more cunning things like questions (”where can I download your theme?”) and appeals to your helpful nature (”I’m having trouble subscribing to your RSS feed”).