Yes and no. Some are just way overconfident in their knowledge of medicine and human body, while it is miniscule compared to the average physician's. Medicine is a field much larger than people realize. It is easy to think you know a lot when you don't even know how much you are missing.
Having a reason doesn't make it any less dangerous though.
That is relatively benign compared to what I've seen before. I normally refrain from repeating misinformation, even for debunking it but I will make an exception (or two). I've seen comments ranging from "salt intake doesn't increase blood pressure because you pee what you don't need" to "blood glucose levels aren't good for diagnosing diabetes".
Edit: OK, that's not really a "range". I have no idea why I phrased it like that. Both are very dangerous statements that can be life threatening if the wrong person believes it. I just hope that comment didn't cause any diabetic ketoacidosis cases.
Medical doctor here. Please don't get health advice from hn comments. As a matter of fact, I advice against reading anything about health on hn, as the risks of dangerous misinformation far outweigh any useful information you might learn here.
>similar niche genres of games have managed to mostly ignore each other
That's only because they are only "similar" on the surface. It feels like saying "football, volleyball and basketball are similar" just because they are all team games played with a ball.
> the process of generating the cards contributes substantially to the learning and memory formation.
How is creating a card anything different than reviewing the card once? Anki is a long term tool, writing something down once isn't. The time spent creating cards is better spent on doing more reviews.
Having a reason doesn't make it any less dangerous though.