It might be because FB is a much more broadly known brand in the world, and regular news outlets like CNN are significantly more likely to go after public faces

It might be because FB is a much more broadly known brand in the world, and regular news outlets like CNN are significantly more likely to go after public faces. The world knows who Zuck is. Nobody knows who Weiner is, except in tech. Even if there were some coverage, it might not get widely picked up, editorial rooms would just think it too narrow. Also - there needs to be an 'obvious scandal' with legs - like the the Cambridge Scandal literally had that pink-haired guy with many photo ops making a name for himself, it gives a 'face' to the issue. Maybe this one breaks though, it could get picked up.