Been thinking about this more, and regarding #1 I wonder if perhaps part of what we're seeing is that a significant number of people just weren't thinking in terms of principles to begin with. (Probably most people in fact; it's not really something that comes naturally with system 1 thinking.)
We see stories on HN about companies forcing guardrails on the models they release to the public, see a bunch of people in the comments talking about how terrible that is, and think "cool, looks like the majority has a principled stance in favor of open models without guardrails". But really only a small percentage of commenters were thinking in those terms. What most actually support is just the idea of themselves and people they like getting access to open models without guardrails. When a different story comes along about a company not imposing those guardrails and people they don't like doing bad things with that freedom they have a completely different opinion.
You could call it hypocrisy, except it's not really hypocrisy to go against principles you never had to begin with.
It feels a little snobbish to talk about it this way so I'll inject a bit of humility by adding I'm probably guilty of this too sometimes. Like I said, it's a natural product of system 1 thinking. But it's probably healthy to give people a little grief over this, because having consistent principles is important to a well-functioning society.