Flat-Earthers are morons of the highest degree, but that doesn't mean anyone has the right to silence them. If they want to engage in intellectually-dishonest retard gymnastics, I say let them. It will expose the people who are seduced by such nonsense. All of them should then be ignored and given absolute priority in vocational training and employment by the ditch-digging and fruit- and vegetable-picking industries.
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From @brentwilbur