[Lurker decloak]
This thread has reached the point where it could use an injection of keyless signature infrastructure, as invented by Ahto Buldas of Guardtime (I am not associated with them):

http://en.wikipedia.org/wiki/Linked_timestamping

Some forms of global coordination, such as a stochastic cooperative signal that is widely observable, are compatible with decentralized paranoia.  Just ask neurons and ants.

Perhaps Mr. Reed might reconsider his resignation to PKI and central servers with this information.
[/Decloak]