I don't follow r/Askhistorians but is it really the case that factually incorrect comments are heavily upvoted with no dissenting one in sight ? I am not suggesting it's rare but I would like to see some examples as in subreddits I follow it's rarely the case (at least on things I am able judge myself).
All the time, especially on any topic that is technical or requires actual knowledge.
It's either the comment is misinformed, upvoted by other people who are also misinformed, or it is just scraping the bottom of the barrel for that topic.
