If I had to take a quick guess, it's because Akamai charges by the bandwidth. While your (paid) MSDN account supports the Akamai charges, the general public wil

If I had to take a quick guess, it's because Akamai charges by the bandwidth. While your (paid) MSDN account supports the Akamai charges, the general public will just get leftover bandwidth from various services which is 'free'.