How strict they are gonna be about that I dont know but Alex K indicated that its for real.
They are pretty strict. You definitely need a buyer's credentials to get in, especially these days when not all retailers are B&M. Otherwise, the place would be overrun by fashion addicts scamming to get next season's fashions at wholesale. I was once turned away from a trade show (in Vegas - Magic ) because I hadn't brought my tags. Had to go back to the hotel just to get them. Magic sucks anyway.