To make things very easy for a legitimate commenter, this small plugin asks the person making the comment to answer a simple math question. This is intended to prove they are a human being and not some kind of robot.
This plugin displays an image with some random text that the commenter has to enter in order for their comment to go through. This should cut down on any bots out there from spamming your comments area and perhaps remove the need for comment moderation.
Hardened Trackback generates single-use, expiring trackback URLs with AJAX. Whenever someone tries to send a trackback without a valid key it will be ignored.
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