Well, for instance, the rather scornful rejection of anything that doesn't work the way the speaker accepts (e.g. dismissing cited evidence that the claim that the most immediate cause is often not how real people talk about causation); the numerous times people (including yourself) have besmirched my ability to trust or interact with others; the repeated situations where users have openly ignored corrections about how games they don't play (like Burning Wheel or Dungeon World) in order to continue making the same point they previously made; the user who repeatedly and actively antagonized me, personally, while making sure doing so was juuuuuust nonspecific enough to not be worthy of an infraction.
I could probably list more if I went and trawled through the thread, but they're there.
And, just to you know? The things that are being quoted ARE meant to be at least compatible with publishing in academia. You're the one ascribing haughtiness; you correctly identified what voice the authors were going for, you just assumed they were therefore judging you.