Stop Registration Spam is a WordPress plugin designed to prevent automated spam registrations effectively. By requiring users to answer a simple question during the registration process, it ensures that only genuine users can sign up while blocking spam bots. The plugin is easy to install; users need to copy the plugin file to their Plugins directory and enable it through the WordPress Settings menu. Once activated, it provides an options page where administrators can customize the question and answer, along with a hint for users who may struggle with the answer.

The plugin has demonstrated significant effectiveness in reducing spam, with reported reductions from dozens of spam registrations per day to none. This makes it a valuable tool for WordPress site owners looking to enhance their site's security while maintaining a smooth user experience. The straightforward setup and customizable features make it accessible for users of all skill levels.