You are posting this under a pseudonym. If you did publish something horrific or illegal, it would have been the responsibility of this web site to either censor your content, and/or identify you when asked by authorities. Which do you prefer?
Key point right here.
You let people post what they will, and if the authorities get involved, cooperate with them. HN should not be preemptively monitoring all comments and making corporate moralistic judgments on what you wrote and censoring people who mention Mickey Mouse or post song lyrics or talk about hotwiring a car.
Why shouldn't OpenAI do the same?
Your keyboard is.
Censoring AI generation itself is very much like censoring your keyboard or text editor or IDE.
Edit: Of course, "literally everything is a tool", yada yada. You get what I mean. There is a meaningful difference between that translate our thoughts to a digital medium (keyboards) and tools that share those thoughts that others.