Allow users to see the location precision setting that other users have chosen. Because one of the intentions of this app is to be able find people near you, and one of the options is to randomly obfuscate your location by around 30 miles (which may be a dealbreaker distance for some), I think a fair compromise is to allow users to know how incorrect a person's location data is. This should not pose a security risk to users, as the obfuscation amount is not static, regardless of the chosen setting.