"We also collect and store information that your device may provide to us in connection with your use of the Service, such as your browser type, type of device, browser language, IP address, WiFi information such as SSID, mobile carrier, phone number, unique device identifier, advertising identifier, location (including geolocation, beacon based location, and GPS location), and requested and referring URLs and mobile applications."
Yelp collects WiFi SSIDs, unique device identifiers, mobile carrier info, advertising IDs, and beacon-based location data โ well beyond what a business review platform requires for core functionality.