I honestly fail to see what your point is, and as an argument, it does not impress me much. You went off your way to argue a minor inconsequential detail (yes, given what was discussed, it was inconsequential), and at the same time suggest they were less knowledgeable about the topic (which I might remind you, was not geographical terminology of land regions).

You'll do yourself a favor to not insult people over technical details. The arrogant attitude does not give a good impression. If you wanted to make it known you knew something they didn't, you could have achieved much more with "Belize and Central-America for that matter is considered to be part of North America, and very explicitly not part of South America". There was no need to make a point of someone knowing less, or disparaging their argument that had little to do with this.

In any case, do not mistake my interaction here as some sort of personal investment. I do not care much. Take the advice from a stranger as you will.

You missed the point. Parent has very strong opinions ("evil man"), yet makes statements that expose lack of familiarity with the subject. I'm calling it out.

My desire: People with strong opinions should temper them. Or at least temper them in public. That's all.

How exactly does what you pointed out -- "lack of familiarity with the subject" of geography -- constitute a "calling out" of their strong opinions on McAfee's character?

Total fucking non sequitur!

(Even trying it on paints you in an ever worse light. At least in my book, you'd have come out of this a lot better if you'd taken GP's advice and backed off gracefully one or two comments earlier.)

If your objection was to him having a too strong opinion, which would be more than welcome, you would be better served by making your argument relevant to that, and not geography trivia. It's a form of ad hominem, of which all forms are annoying.