I agree with the idea that once you say or do something in public, you no longer have any rights or control over it, other than about credit or slander.

You have a right to complain if someone lies about something you said, either by putting words in your mouth or taking credit for your words.

You have zero rights over anyone else's memory of the fact that you said something or what you said.

That's not some new thing HN is doing, that's just life.