I assume it is a comment on the turn of phrase "It's scary how many", suggesting that perhaps this is a phenomenon that the poster has had repeated experience w

I assume it is a comment on the turn of phrase "It's scary how many", suggesting that perhaps this is a phenomenon that the poster has had repeated experience with. (I'm not sure this is a valid criticism, as the comment comes first and the anecdote second, suggesting that the anecode is there mainly for backup.)