“I have been a lifelong beneficiary of intelligence tests, I don't think much of them. I believe they test only one facet of intelligence—the ability to answer the kind of questions other people with the same facet of intelligence are likely to ask. My IQ rating has always been out of sight, but I am perfectly aware that in many respects I am remarkably stupid. Second, it seemed to me to be beneath my dignity to take an intelligence test. Surely, my life and work were ample testimony to my intelligence (such as it was).

I took the test, scored high, and became a member of Mensa. It was not on the whole, a happy experience. I met a number of wonderful Mensans, but there were other Mensans who were brain-proud and aggressive about their IQs, who, one got the impression, would like, on being introduced, to be able to say, ’I’m Joe Doakes, and my IQ is 172,’ or, perhaps, have the figure tattooed on their forehead. They were, as I had been in my youth, forcing their intelligence on unwilling victims. In general, too, they felt underappreciated and undersuccessful. As a result, they had soured on the universe and tended to be disagreeable.

What’s more, they were constantly jousting with each other, testing their intelligence on each other, and that sort of thing becomes wearing after awhile. Furthermore, I became uncomfortably aware that Mensans, however high their ‘paper IQ’ might be, were likely to be as irrational as anyone else. Many of them believed themselves to be part of a ‘superior’ group that ought to rule the world, and despised non-Mensans as inferiors. Naturally, they tended to be right-wing conservatives, and I generally feel terribly out of sympathy with such views.

Worse yet, there were groups among them, I found out eventually, who accepted astrology and many other pseudoscientific beliefs, and who formed ‘SIGs’ (‘special interest groups’) devoted to different varieties of intellectual trash. Where was the credit of being associated with that sort of thing, even tangentially?... I stayed on in Mensa for years, getting more and more tired of it. ... Eventually, after both Marvin and Margot [two of the New York Mensans he acknowledged as "delightful and intelligent"] had died, I did resign.”

— Isaac Asimov (1990), I, Asimov: a Memoir; reflection on his 1961 Mensa experience

“Actually, Adrian Seng is Terence Tao (Ѻ). A book about gifted kids written by Miraca Gross (Ѻ) included biographies of real-life gifted children but she changed their names. Terence Tao's name was changed to Adrian Seng. I disagree with your inclusion [actually not included] of chess champions, Go champions, and idiots who supposedly did well on those fake ‘Ultra-High IQ Tests’ (e.g. Widsten [IQclaim: 175+] (Ѻ), Lygeros [IQclaim:189] (Ѻ), Gunnarsson [IQclaim: 235] (Ѻ), Schuessler [IQclaim: 185] (Ѻ), etc.). These idiots haven't achieved anything that matches their inflated IQs. One person I suggest you include is Michael Grost. He was a true genius who achieved honorable mention on the incredibly difficult Putnam exam (the same one that Reid Barton won 4 times) at the age of 13. Also, include Gabriel Carroll. This guy probably has a > 200 IQ. Lastly, I'm pleasantly surprised that you know Wei-Hwa Huang. We really should talk because I know a lot of the people on your list.”

— American Anon (2011), “Top 50” (Ѻ), IQ:200+ thread (post #11), poster from Richmond Virginia, Mar 14.