He's the site's gaurdian. You get a lot of people that respect the idea of a gaurdian, unless they are the ones turned away. Then he's not a guardian, he's an oaf. If he's letting some in, I'd suggest asking first. Perhaps he's watching out for people with metal detectors or pots of paint, or just going on gut feeling. He obviously isn't bothered about cameras, there's pictures enough on the net.