https://news.ycombinator.com/newswelcome.html
> Which brings us to the most important principle on HN: civility. Since long before the web, the anonymity of online conversation has lured people into being much ruder than they'd be in person. So the principle here is: don't say anything you wouldn't say face to face. This doesn't mean you can't disagree. But disagree without calling names. If you're right, your argument will be more convincing without them.
https://news.ycombinator.com/newsguidelines.html
> Please don't post shallow dismissals, especially of other people's work. A good critical comment teaches us something.
And so on.