i quite like when apps use my location info to do unique things like recommend places in the vicinity that are good(foursquare) or give me specific filters for

i quite like when apps use my location info to do unique things like recommend places in the vicinity that are good(foursquare) or give me specific filters for a location(snapchat) phones should obfuscate the location provided in some way so that users can take advantage of location services without continuously sharing my movement to the backend