IMPORTANT: The plugin described below has not been updated or tested in many years. Use at your own risk.
In my ongoing battle against comment spam, I have finally decided to write myself a WordPress plugin as an additional layer of defense. It’s called WRECK (WordPress Regular Expression Comment Killer).
WRECK (WordPress Regular Expression Comment Killer) is an extremely simple plugin for marking comments as spam if they match certain regular expressions.
Current Version: 1.0
Release Date: 7/6/2008
INSTALLATION: Just download and copy wreck.php to your plugins folder (wordpress/wp-content/plugins), then activate it in the plugins section of your WordPress blog.
LICENSE: This plugin is open-source (GNU General Public License), but I would appreciate it if you let me know of any modifications you find helpful.
SUPPORT: No formal support is provided, but I will take a look at any requests/suggestions/complaints you send me through my contact form.
NOTES: This plugin is very simple to use, but BE CAREFUL! It uses regular expressions to filter comments, so a badly written regular expression may block legitimate comments.
By default, only one type of comment is blocked: a comment containing only two lines, the first of which is bolded, with an ellipsis (“…”) on each line. The author gets a lot of comment spam like this, which is the reason he wrote this plugin.
If you find this plugin useful, please let me know here. Please also let me know if you discover any useful rules or make any other modifications.