I'm very intrigued by this "authenticity rating."<p>On the one hand, I feel like it's kind of racist to assume that someone of a race will automatically know what good food from their native country tastes like (for example, children of immigrants who have never been to their ancestral country of origin).<p>On the other, I feel like it's at least an interesting start to try and find what is "authentic". How do you extract that for other marketplaces like Airbnb or Etsy? How do you define an "authentic" traveler? Or artisan? It's a very interesting problem and a neat heuristic to explore.