By protection my meaning was that the moderators could keep flag happy users out. For example a community of flat earth believers need not worry about a Bernie attack. What goes on in the community should be up to the community. In no way is my suggestion tp mean censorship of the blockchain. The thought crossed my mind to experiment on setting up a node on the Darknet so that such a censor free policy would not run foul of the law in any.particular jurisdiction if tests proved successful.