What if we had a system where there was a constant stream of random bytes coming to/from every IP address out there... and when you wanted to send actual information, you always sent it encrypted ... then everyone would be an extremist and encryptors would no longer stand out.
Yes, this would defeat traffic analysis, but it only works if everyone is using the same shared channel, or if each user maintains a channel with every other user they might ever wish to communicate with. Every user must also check each packet to see if it is encrypted with their public key (requiring an extensive PKI) and is a valid message for them, which is expensive. The bandwidth required is also enormous for anything other than a very limited number of participants.
Sure, Tor achieves some of these goals, and if everyone used Tor all of the time then it would make the NSAs job much more difficult, but it isn't ever going to happen, for obvious operational and practical reasons.
If everyone's communications were properly encrypted, you probably would not need useless random bytes sent down the pipes since there is so much data being transfered on the internet.
