More pop/strat discussion related to polygenic scores

This article in Quanta magazine highlights a couple of recent studies in which population stratification issues are giving artificially inflated polygenic score results that don't subsequently have validity when looking at even a relatively similar population, much less diverse populations.  These were for height, which seems like the most obvious candidate for a genetic trait for which one could get a valid polygenic score, but they had to walk back previous claims.  If they can't get if for height, one should immediately ask why anyone would take such a score seriously for say, depression, or "educational attainment." They are putting a lot of time and effort into these studies and the best they can say to date is that maybe some of the correlations are valid, but pop/strat has not been ruled out as the exclusive cause of all their SNP correlations and subsequent polygenic scores.