"reasons of liable?" Very interesting. How could posting the exact information someone posts on their website be considered "liable"? Me thinks someone(s) have something(s) to hide perhaps? And I'm not talking about JR.
It is no different than the other news sources that ask us not post from there sites. It is JR's decision not to fight with them.
Several of the members of the site used to post on FR, primarily on the Threat Matrix threads... there was some sort of fallout, and they decided they didn't want any of their information posted here.