Previous researchers said "too small to matter," Scott's sentiments were more along the line of "small, but might matter in some areas." His sentence directly

Previous researchers said "too small to matter," Scott's sentiments were more along the line of "small, but might matter in some areas." His sentence directly after him acknowledging the small effects: "I agree they may only exist for a few traits, but they can be strong enough to skew ratios in some heavily-selected communities like this one." And the whole "few studies exist because it isn't interesting" is the cycle that he's pushing to break out of. Enumerating the differences could make them interesting to psychologists, because then they might be able to determine a cause and intervene. The second to last paragraph of his post explains it more.