OK — I’m convinced this plugin is flawed!!! IT IS WAY TO SENSITIVE. It considers ANY word to be “related”.
Proof: Make a Page and a post with a single letter or word on it in the content area. This will match and be considered a relationship. Even things like this will match:
Post : “Apples are red”
Page : “A red cow”
This is not what “related” content is supposed to be — there needs to be some matching criteria, or tagging to refer to the context of the page not just the works – else ANY PAGE and ANY POST can be considered ‘related’ because it matched “RED”.