The BCH blockchain, and the OP_RETURN data can't be shut down. https://memo.cash definitely CAN be shut down.
Even if encryption added, there're ways gov could use AI & heuristics to disrupt the blockchain. Also, w/o a "trust" mechanism they could just join the network themselves & disrupt.
Of course, you could say people already do that when it comes to the existing monetary system. 1 concerning thing though is the danger of monoculture implied. More Vulnerable.
Bitcoin is about at the limit of what can be understood with some difficulty by normal people. This probably can't be, so I wonder if people can trust what they can't understand.
in this respect, bitcoin is no worse than the current monetary system. or tell me you understand that fully and could help explain it to a randomly chosen person.
Ironically, I'm getting closer and closer to being able to do that. Though, I also understand the basic issue with a current system: based on fraud. https://bch.gg/moneydebtplaylist