Yeah, this is what's important here. Hacker News doesn't need to cover politics for the same reason your average sports, celebrity gossip, fashion or gaming forum doesn't need to cover politics. Because people aren't going there for a political debate, and if the site owners and community decide they want to keep strictly to that, they're entirely fine to.
Indeed. And when sports forums (e.g. ESPN) start getting involved in politics, then invariably end up alienating half their audience. This has happened with ESPN, which has contributed to its downfall.
I don't want that to happen to HackerNews.
I come here for love of the software craft, not for subjective, divisive political stories.