This plugin was made to help webmasters block various types of robots (mail harvesters, comment spammers, dictionnary attackers…) before they even have a chance to browse your site
It works by checking the user IP against a list of well known robots maintained at ProjectHoneyPot.org
In order to use it, you will need and API Key.
You can obtain one for free by registering at Project HoneyPot
* Register and get a Project HoneyPot API Key
* Enter the API key in the API Key field
* Make sure the plugin is loaded first (position 0)
* Activate the plugin.