https://www.theverge.com/2018/10/25/18023666/android-nearby-notifications-spam-google-turn-off

Google is discontinuing Nearby Notifications later this year it said, after it noticed Android users were receiving too much spam from the feature. Since Nearby’s launch in 2015, the feature has become a target for marketers and less of a user-friendly information guide.

Your Android device could typically get pinged when you venture near a location with beacons. Unfortunately, instead of providing relevant content, these beacons often sent out spam and unhelpful notifications to users’ phones, resulting in a “poor user experience.”