Let's be clear here. This isn't illegal, it isn't even particularly unusual in modern marketing. This is just an interesting glimpse into the long talked about "pose as the fans" strategy employed by the UFC.
Practically every product on Amazon.com has positive "reviews" put up by people from the product's company which is far more immoral given that it influences buying decisions, Cage Side Seats reminds us of the "All I Want For Christmas Is A PSP" stunt and of course recently in our own sport we all remember the Chuck Liddell works out naked video.
It's all just marketing, but it doesn't make it less interesting.