.That was an awesome answer, which leaves me with very little to add. I'll merely say that—as you've already implicitly predicted—what seems to be going on is that my nature/nurture priors are significantly different from yours and this leads us to such different conclusions.

And there's the satisfying conclusion. Our priors are uneven, but we agree on the evidence and our predictions. We can now safely adjourn or move on to a more elaborate discussion about our respective priors.

As an important data point, my wordgaming experiments rarely work out this well, but so far have retained net positive expected utility (as do, unsurprisingly, most efforts at improving social skills). I'll bump up this tactic a few notches on my mental list.