The best part is that the Blackhole affects bad bots human users never see the hidden link, and good bots obey the robots rules in the first place.
After visiting Warning Message, refresh the page to view Access Denied message.
If the template exists in your directory, the plugin automatically will use it to display Warning Message.
If the template does not exist your directory, the plugin will fallback to the default warning message..
So after uninstalling the plugin and deleting the robots txt rules, there will be no trace of Blackhole for Bad Bots on your site...
In for the plugin to add the trigger link to your pages, your theme must include the template tag, wp footer.
Once the footer tag is included, the plugin will be able to add the trigger link to your pages...
Not possible with the version, but Pro version includes easy way to add bots manually ...
Uninstalling section in the documentation, when Blackhole is uninstalled via the Plugins screen, it removes everything from the database.
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
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