I agree I could have been better at not attacking the poster. I'll try to do better (though I'm not allowed to fix my mistake due to site restrictions).
I also think that if vaccine misinformation (which includes that vaccine requirements are just petty tyrants controlling people and not based in science, which is the root post here if you couldn't find it) isn't currently against the current guidelines, then that's an issue.
Referring to authorities as "petty tyrants" or whatever probably doesn't count a personal attack unless the "petty tyrant" is personally present. I don't think those comments are very high quality, but this is the internet. Trying to raise comment quality is like trying to lift a tsunami. We do what we can.
I don't agree that personal attacks are "small". I think they are particularly poisonous to community.