Crazy how most of the negative hype around that, total nonsense people have believed for decades now, started from some doctor making a joke paper in the New England Journal of Medicine because one of his other doctor friends was saying that orthopaedic surgeons were too stupid to get something published in there and bet like 10$ that to my recollection didn't even get paid (although this says 2024 I swear I remember reading about this 5-10 years ago):
But the story doesn’t end there. In 2024, a major twist emerged when a retired orthopedic surgeon and Colgate University trustee named Dr. Howard Steel contacted Colgate University professor Jennifer LeMesurier to make a shocking claim: He was the author of the letter. Goaded by a friend who had bet him $10 that he wasn’t smart enough to have an article published in The New England Journal of Medicine, Dr. Steel said he had invented the sensationalistic “strange syndrome” and the persona of Dr. Robert Ho Man Kwok to win the wager, LeMesurier recounted in a 2025 episode of This American Life. [1]
[1] https://www.self.com/story/what-is-msg-and-is-it-bad-for-you
The same This American Life episode raised serious doubts about Dr. Steel's claims, which is mentioned in the article you link:
> When reporters tried to corroborate Dr. Steel’s claims, however, holes started appearing, according to the This American Life episode. Chief among them: There actually was a real Dr. Robert Ho Man Kwok, and his biographical details seemed to match those provided in the letter, like his professional title, the name of his research institute, and the date of his move to the US.
> While both Dr. Steel and Dr. Ho Man Kwok had died by the time the digging began in earnest, their surviving family members were able to shed some light on the situation. Dr. Ho Man Kwok’s children and former colleagues were adamant that Dr. Ho Man Kwok had in fact written the letter. Meanwhile, Dr. Steel’s daughter said her father was a lifelong prankster who loved pulling one over on people. With this testimony in mind, the reporters came to the conclusion that Dr. Ho Man Kwok was most likely the true author and Dr. Steel had taken credit for years as an elaborate practical joke.