The groupthink here isn't straight party-line, but it does have a lean.

That's moving the goalposts quite a bit from "...absolutely be voted all the way down."

Not really. It just means the topics people are touchy about don't follow the party line. They're still touchy and political about them.

I actually agree, I just think libertarian right wing is a mischaracterization, and I think it matters because the stereotype of the tech nerd is the atlas shrugged-toting libertarian, but HN doesn't really match that stereotype most of the time, I think.