"What ZKANNs make possible is censorship without loss of privacy. Both censorship and privacy are problematic if left unchecked, but ZKANNs pit one against the other, striking a balance that gives us the best of both worlds. Censorship without privacy can lead to loss of free speech and civilized dissent. On the other hand, as we have seen, privacy without censorship can lead to the proliferation of harmful content."

- Ross Ulbricht

https://medium.com/swlh/zkann-a-possible-solution-to-the-content-problem-6a4eec578b5b