I also don't think that the hacker spirit responds well to barriers of thought and discussion.
It's just an anecdote, but I know my views have been greatly affected in part by hacker news. I was once a staunch libertarian, but reading a lot about universal basic income and other approaches people have offered to income inequality and social issues, while talking about the technology trends first and foremost, have convinced me to broaden my beliefs.
There is something about having a stated goal outside of political points scoring that helps everyone see themselves as part of the same team. I've always felt hacker news is largely about understanding things related to technology - trends, weird bugs, how startups work, etc. With that as our main focus we can defer to each other and learn from each other. When the main force is to debate the other side there is no room for concessions or finding common ground.
What I want in a community, is for people of all different views and backgrounds to think about a topic with the end goal of solving some problem. Hacker news isn't perfect there but it's close.
I know I just learned something from this meta discussion, about the argument that the economy can't support UBI based on GDP numbers, and I'm eager to go read more. Most arguments I have seen say it won't work because of moral hazards and I haven't seen an argument that says it flat out can't be done, because there are so many different approaches and different ways it could play out.