I really need this plugin to work; I run - amongst other things - a webpage that features one entry for every episode of a podcast; and I would like every post to be attributed to all people who were in that episode. As this changes from episode to episode, this plugin would be a great help.
However, the addon seems to break everything that has to do with WordPress Post Counts. Any addon that I have with any reference to the_author_posts() breaks and only shows the amount of posts assigned to the (co-)author after the plugin was installed. With 500+ previous posts to go through, this doesn't work for me at all.