Fair. All I’m saying is, if someone is trying to impersonate some one and primal requires a nip-05 for their centralized caching server then it would be important to add that to your npub so that the service can “verify” you in some capacity. It helps with reach in that case; and lookup for npubs. Which is what the OP wants reach and doesn’t want shadowban from centralized cache servers; best to control your own domain and use the nip-05

Valid. But does Primal even require NIP-05? I don't see anything about it on their website This looks like a more specific ban. Primal devs have already acknowledged that they have a list of npubs "prevented from trending", shadowbanning is only a single step further down that path...