How to stop WordPress spam
My blog is protected by Advanced Textual Confirmation.
* No more spam.
* No complains from the visitors.
ATC is a generic tool, suitable for any PHP script. On my sites, it also protects phpBB forum and several Wikis.
Installation is simple, just follow the instructions. For WordPress, it's enough to modify only one file, wp-config.php. Add at the beginning:
require_once '...../bbantispam.php';
Trivial install, trivial maintenance.