There is an hidden feature in this plugin (I really need to do documentation on this...). Basically everytime you mention something it will save a post meta of the mentioned posts in the article (meta_key = mentions). Also, it will add a new post meta on the mentioned article with the id of the post it was mentioned on (meta_key = mentioned_by).

This could be very powerful. For example on a post single page, one could easily fetch all other posts that currently links to the current one using the get_post_meta('mentioned_by').