If I post my nsec publicly, anyone can then post as me.
But by that same logic, no one can prove that I am the one who posted a particular note.
Useful for distributing information in jurisdictions that are authoritarian but still have functioning courts?
Maybe not, just thinking out loud.
They are going to try to trace the origin of the offending note by IP and other metadata. You could defend against that by posting through Tor network or similar anonymizing systems. But if that is effective, you might as well keep your nsec secret. You probably want a pseudonym for your anonymous posts. Like Benjamin Franklin wrote as "Poor Richard" for articles that could get him in trouble with the British.
that's a great point
