I ever dreamed of a p2p information system. you start and save a piece of message on your computer, and this information will spread out to connected peers.

from the government side, they can't tell who is the message starter, and there are so many redundancies. There is no single server to block.

of course, there are concerns about spamming. But spams may be filtered by voting.

but the gov can use this feature to censor information.

difficult problem.