In fact, the current Pajamas Media story (here) seems only to link to the image.
Update: February 11
MIT Technology Review has an article by Christopher Mims, "Post a Copyrighted Picture, Face a $150,000 Lawsuit; Righthaven waits for content to go viral, then buys the rights to it and sues everyone in sight", link here. The article also mentions the shakedowns of posters and comments, and says that the company buys up the article to sue after it goes "viral" on the web.
Update: February 16:
EFF posted a tweet about a BitTorrent Lawyer story about the apparent dismissal of all or most of the US Copyright Group cases on jurisdictional grounds, story here. I'll have more on the theory involved later. It might even matter to Righthaven.