[jprete]

If the feat you mean is to perfectly recall disparaging information they see about people on web sites, we already have people with quite good memories. Irrelevance usually keeps them from bringing up the details of strangers' lives on a regular basis. If the juicy details are about friends or acquaintances, well, it's very easy to destroy one's social position - at least, with non-toxic people - by endlessly and tiresomely discussing other people's misfortunes or mistakes.