If there is one takeaway for me from the latest round of revelations, it's just how much effort they are willing to expend. You're right about it being a communications problem. The possible solution of the child-sites popping up all needing to link buyers and sellers securely just sounds to me like you'd have the same issues with competency as one node, multiplied a few times. Encryption isn't easy for most users, and any sort of managed interface or network to make it easier is a huge point of failure potentially. Maybe encryption knowledge at a base level just isn't where it needs (for the population in general) to be for a distributed marketplace like that to work anytime soon.a distributed and secure communication network in which it's not worth the effort to track down each and every person involved.