The bonus cash offer you're talking about is the real deal. Back when I was a regular, I would get those mailed to me every month (ranging from $100 - $250). I'd go straight to the cage to get the cash, then go to the buffet (one free every day for Diamond player), then walk straight to my car and leave, not having placed one bet. Those were the good ole days, when I could get a free room anytime I wanted, got a free buffet (for 2) every day, and a free round of golf every day.
Also, the $100 voucher to the steakhouse is also legit. They would send me one on my birthday. And yes, I had dinner for two, and still ended up paying $40!
Too bad about the news that the PC's are backing people off. Haven't played there in a couple years and never got hassled while spreading with reckless abandon. Guess I'm lucky I left, before the heat showed up.