They absolutely can just post notes like everyone else and that’s what Nostr is But the idea behind carving out a dedicated space isn’t about exclusion, it’s about visibility/structure/and trust and all the tools they would need

I don’t know if your familiar with real whistleblowers, but they’d need more than just a note field on Nostr. New tools can be added for them on top of the protocol things like: Timed or conditional publishing

Dead man’s switches , Encrypted attachments with selective disclosure

And then Zero-knowledge proof systems to verify authenticity without exposing sources , for the rest of us

They’d go troughs that process and get a label on their profile , no need for editors , the rest of Nostr can freely interact with them with whatever opinions they have