I have to admit that as soon as the first story came out I was pretty sure it was fetish related. I mean, someone is offering young, pretty, female tourist a lot of money just to be filmed having their heads shaved. There really is all of... one possible explanation for that.
However it must be said that I have more familiarity with the diversity of fetishes out there than the average 20-something backpacker. And even I was not specifically aware of hair cutting and head shaving as a fetish per se. But in general if an anonymous person offers pretty gals a lot of money for a visual record of.. well, just about anything, that is probably a fetish. The fact they were instructed to wear a little black dress and high heels for the shooting just makes it all the more obvious.
And sure enough, the actual purpose of the filming has now become clear.