To keep your ISP from slipping ads into the audio stream? To keep RIAA from finding out what you're streaming and suing you into oblivion?
And, more importantly, to keep misconfigured network appliances from treating every resource on the web as HTML and trying to shove ads into it, breaking audio players.
And, more importantly, to keep misconfigured network appliances from treating every resource on the web as HTML and trying to shove ads into it, breaking audio players.