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Majority of the science-oriented boards are frequented by the people who have degrees and professional experience in engineering, computer science, chemistry, genetics, economics and architecture. None of these fields requires knowledge of mathematical statistics.
Some part of this debate has been a little hard for me to follow, since I've never read any of the details of the underlying experiments. But the line quoted helped make things clear. Every economist is trained in mathematical statistics. The OP is just making up stuff.