So basically, we're screwed. Any form of remote communication can never be sufficiently secured against a sufficiently-determined adversary (like a government-backed evil twin). Plus the malcontents are taking advantage of the very things that make our forms of communication useful (like anonymity), so there will never be a solution that doesn't carry significant collateral damage. Stateful Internet means Big Brother. Whitelists mean you can't receive truly useful stuff from newcomers, and registries can be subverted or hacked.