I suspect many of the upvotes in this are being done out of an assessment of the interestingness of well-writtenness of a comment rather than disagreement. If this weren't the case I would expect boring and obviously untrue statements to be at the top, instead the top comments are interesting and more boring ones are hovering around zero.

I suspect upvoting comments you enjoy reading becomes reflexive in long time users, so overriding that instinct requires conscious system 2 effort.