It's not so much that HN isn't 'open', but there is a wide double-standard in the evidence required for libertarian-right arguments vs leftist arguments.

See this thread:

https://news.ycombinator.com/item?id=20780064

Lots of right-wing arguments upvoted with almost no evidence:

> [The city] grant[s] de facto immunity to homeless people committing petty crime, stop all police enforcement of drug laws, and shame everyone who dares to complain.

This isn't an argument, and has no sources other than a vague 'feeling' by the poster. It even includes a bit of a cut at the left ("shame anyone who dares to complain").

I'm not really complaining about that individual comment, but it's also upvoted and contains no argument or substantive discussion. Similar comments I've made are always deeply downvoted.

This has a chilling effect on discourse from leftists, where it feels like it's not worthwhile to write a substantive comment only to have it downvoted with nothing other than pithy right-libertarian ideological comments in return.

So I haven't really bothered with this account, hence spewing ideology.