By "all" I assum you mean every possible permutation of @ and npub and nostr:. And, if #[4] is right some of those should not create #[n] and "p" tag references and should should? Ugh.
>From: vitorpamplona<-De... at 04/22/23 18:52:58 on wss://atlas.nostr.land
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>But in practice, you have to support them all if you want your users to have a good experience.