I think that's still 'crowdsourcing'. They might ask for new information or that you validate an existing user contribution. It helps them a lot, you do free w

I think that's still 'crowdsourcing'. They might ask for new information or that you validate an existing user contribution. It helps them a lot, you do free work. Be it Yelp, TripAdvisor or similar database that collect POI data (points of interest) or similar addresses, that's big business. There's only a few global databases like that in the world and they all have to kept up-to-date to compete with Google Maps. I say Google Maps because that's where most business owners add their own data immediately (and for free) while the same business owner won't update their profile in the other databases. Foursquare charges $5 USD per 1000 API requests (https://foursquare.com/products/pricing/ https://foursquare.com/products/pricing/), Google $17. As for the cuisine I can only point to the definitions OpenStreetMap uses https://wiki.openstreetmap.org/wiki/Key:cuisine#Cuisine_(ethnic,_national,_cultural,_regional,_etc https://wiki.openstreetmap.org/wiki/Key:cuisine#Cuisine_(eth....) and what mappers really added to places around the world https://taginfo.openstreetmap.org/keys/cuisine#values https://taginfo.openstreetmap.org/keys/cuisine#values