To be clear, I was referring to public, general use, "free speech" relays, with expressly permissive policies, as opposed to running one's own relay for one's own notes, which is also a good idea but a different thing. None could guarantee those relays wouldn't censor, but if there were enough of them, and people preferred them, the overall resistance would be good. Nostr isn't for everything. For many tasks a central database works better. By a similar principle, platforms which aren't by design technically censorship resistant should have free speech policies and users should prefers platforms that do.