WP Captcha-Free is a lightweight plugin that blocks automated comment spam without using captcha (image verfication).
Note: If your WordPress theme doesn't have the comment_form hook, enter the following code right before the closing
</form> tag in the
comments.php file of the theme.
<?php do_action('comment_form', $post->ID); ?>
Requires: 2.3 or higher
Compatible up to: 3.4.2
Last Updated: 2012-7-27
Active Installs: 10,000+
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