The article doesn't mention this but "employees from Dr Bronner's" (so the story goes, since the event is supposed to be non-corpo) run a pretty huge camp at Burning Man each year, where they provide a large public shower/dance party featuring Dr Bronner's soap. This is such a nice thing to have in the desert where most people don't have running water that people can line up for hours to enter (plus it's pretty cool inside).