Better still, go back to using Fidonet
We need to conceptualize a true peer to peer network.
There might serve, as a Free Republic 'coordinator', a fat-client application that resides on your computer. It is not a server. Each equipotent node would distribute messages and threads to other nodes. The Free Republic experience could never be the same between any two nodes, since messages and threads would come in to your computer in different orders.
JimRob would maintain a secured protocol which would allow him and other moderators to send 'kill message' and 'block user' messages, allowing moderation.
Otherwise things would be the same. It would be up to the application to render things in the same look and feel.
While it would be possible for the Feds to identify and raid each FR user, it would be a daunting task often involving significant physical resistance.
what exactly is Fidonet?