How would the service pay for itself? Are you willing to pay? re: B, D) Could data mining be okay for public feeds where people choose to be anonymous? Could

How would the service pay for itself? Are you willing to pay? re: B, D) Could data mining be okay for public feeds where people choose to be anonymous? Could private groups be peer-to-peer encrypted so the network can't identify the participants, can't decrypt and can't mine the conversation? If I build it will you come?