I recall seeing several no videotaping signs back in October. When I worked for several stores, photos/videotaping was not permitted in the store itself and the malls because of the policies.
I think the reasoning is that a big part of your check is the experience, and you would be cheapening the experience by posting it on YouTube. I mean, don't get me wrong, it's still a stupid policy. Pretty much every ride at Disney's on YouTube (how some of them hold those camera's, I have no idea) and it would probably be better for me just to watch T-Rex on video rather than go in there. From what I've heard, it sounds like a torture chamber for autistics.
lol....we were just there sunday, and i DID notice several no videotaping signs...thought it was strange, but i didnt have a video camera with me, so i didnt think much else about it....