if applications are using it for non-nefarious reasons, the fallback behaviour for people like you who block it is to use more of your bandwidth or battery powe

if applications are using it for non-nefarious reasons, the fallback behaviour for people like you who block it is to use more of your bandwidth or battery power to render non-visible elements. it's an optimization for most people, so it's still worth implementing even if some clients block the API.