No, let's please not douse ourselves with gasoline and try to relitigate this one.

> Eschew flamebait. Don't introduce flamewar topics unless you have something genuinely new to say. Avoid unrelated controversies and generic tangents.

https://news.ycombinator.com/newsguidelines.html

Ah okay, so the clear best move is to do nothing and let everyone say whatever they want on every web application that allows user comments. That policy surely won't be abused.

Who gets to define murder?

All rules are made by fallible humans. That doesn't mean we shouldn't have rules.