Fake user registrations are always a pain to deal with but with RO Users you can at least clean them up automatically. Even better is if the user never manages to register. RO Users ships with a plugin that allows you to block users from registering on your site when they match one of the words you have added to the blacklist. This won't magically prevent all spam registrations but it is at least a way to control it a little bit. The RO Users block user registration plugin is installed automatically.
RO Users block user registration plugin
The plugin is installed automatically but is not published yet. To use the plugin you simply open the plugin, set it to published and add the words you wish to block a user registration on. Save your changes and the plugin goes to work.
After adding some words you will see it starts to look like this image.