I'd say "you fucking moron" besides rude, is grounds for killing your account.

As to the question, rules on any property, including a website, are usually imposed by the owner.

That's what "ownership" has to do with it.

There are moderators, and comment and submission rules in places. Maybe you conflated HN with some kind of self-governing collective?

>That does not make him more right than any other human being. Ownership means one can impose ones will, it does not mean you are omniscient.

You wrote that again and I already answered. Nobody cares about PG being omniscient. He can impose ANY arbitrary will (right or wrong), because it's his site. He can even close it if he gets bored with it. Whether you or I find any particular rule "right" is inconsequential, as we're guests here, not even customers.