In regards to the P.S., using 'private' is a misnomer here, moreso 'unlinked until linked'. I fully expect that under such a system, no nodes would be considered private (thus preventing use of such a system for storage of personal information). I would also make sure that when such nodes are displayed at PM, a large enough warning is given to the reader to understand that this node has been indicated as a work-in-progress and should be treated as such; I'd also prevent these nodes from being voted on until they reach the standard public status.

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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain