Well...everything except the suggestion that most boarders are women seems to make perfect sense.
High income: most liley, atleast the way we understand the term here, in the context of cash-flow
disproportionately childless: you bet!
college grads: Most are I guess.
most here are women: what????? that doesn't seem to be the case at all. AFAIK, there are very few women here, unless a disproportionately large percentage of the non-posting lurkers are women. Or maybe it's just that gender was never brought up much before and the avatars are not suggestive (very few have one even)...and the names are mostly alphabets

anyway...this is news to me..