I have played with this a bit but am not figuring out how to use it. I am in the middle of some other things at the moment. I do think what is here and what you are using are used differently just from the part I did read on it.
In order to use the global portion of the plugin the theme would need to be where you could put the snippet that comes with the plugin
This is also a good idea to help further prevent your site and your content from being scraped. Some Blackhat marketing software will do an extensive search and look for footprints, like the Wordpress copyright to scrape content in bulk. Thanks for sharing and all the best!
This wasn't created with people copying text in mind. Someone just asked me if I knew had to modify the Copyright. It is an older theme so the only way to do it was to modify the code.