DNS is the first thing countries do when they need to take you down. You just need to give them an excuse and you will lose nostr.build forever. Then none of our links inside our notes will work anymore. In many cases, countries don't even need to go through court to get you offline. I have seen many domains being lost (redirected) in my lifetime. It's super easy for them to go through.

I’d be more concerned about registrars. There a shit ton of crap ones out there. Still using Gandi myself. But I’d love to hear what others use in a privacy mindset. I know they were acquired and may not be the company they once were. They still beat the hell out of most IMO.