According to their website, not Mensa provides the exact opposite - a forum for dim-witted, mindless exchange between low IQ members through the exchange of silly jokes, discussions on irrelevant topics and mindless ponderings.

This society for the hard of thought numbers 250,000 members all of whom are clearly happy to wallow in their stupidity. To join you’ll need to prove yourself suitably stupid in the IQ test answering questions like are the digits 22 the same read backwards.

You’ll be part of an elitist club where you can debate with like minded morons or study for a profressorship in nonsology or even thingamybobbiology. With all these benefits, it’s definitely worth considering. In fact, some would say you’d be a fool not to…