red, most swinger orgs that I've seen do not allow any sort of recording or photography. I'm sure that's probably different if you're meeting up with a bunch of people from Craigslist or something, but if you're going to a swinger club, most will explicitly disallow video or pictures in their rules.
As for the MGS, you should check out the
Sex is Fun podcast. Episode 14 is specifically dedicated to MGS and the discussion starts at about 16:40.