I had similar idea but applied to anything that uses some sort of “recommendation engine” internally.

The things I wanted use it for was for Netflix for TV shows and movies, and Yelp for restaurants.

With the restaurant example, the curation can become as strict as dietary requirements (vegetarian, vegan, gluten-free, kosher, halal, etc) that are in some cases regulated by NGOs or government bodies or as flexible as having the same spice tolerance as a friend.