I meant, if you are using an LNURL it's tied to a domain name and they know who to go to to find records. You are trusting them to not keep records, and they won't be able to tell you if they are if they have a national security letter telling them not to. You wouldn't believe how many crypto exchanges and related businesses get these things. They will be here on Nostr soon enough.
Discussion
National security thing? Is that an US thing?
Fortunately we can run our own nodes, servers and relays and then there is VPN and Thor etc etc.