On my site the pinterest button does not take a screenshot of the current URL or something to pinit that page.. Example is http://www.home-exercises.net/insanity-workout-pushing-past-your-limits-for-the-ultimate-transformation/
It just doesn't work and I saw suggestion to just set media to some image on the site but then every page of my wordpress site will have the same image. Not to mention you dont explain where in the addthis wordpress plugin to set the media value?
Please make this work properly.