This thread in response to David Perry's post of the (horrific) NYer piece on a Nobel laureate/serial child molester brings me back to something I run into all the time: a lack of awareness of how much society has changed over the past several decades.
One thing I remember and hardly anyone seems to is that there's a sort of sexual revolution interregnum when all sex was good (seen from the adult male perspective, which it mostly was) including sex with children, which was publicly defended. Feminism, mostly, is what changed that.