Honestly I was underwhelmed. They started by scraping a site that offered paid likes for a list of their "clients" i.e. the pages to be liked. They talked to a

Honestly I was underwhelmed. They started by scraping a site that offered paid likes for a list of their "clients" i.e. the pages to be liked. They talked to a couple of people who got paid to like pages. They then reported that platform to Facebook so they blocked it (dick move towards the workers they interviewed imo) then they noticed how Facebook profile IDs are incremental so they deduced a profile's creation date from that using "interpolation" even though it didn't account for various sparious points. They used that to look at the distribution of certain pages' and like services' liker profile age (recent profiles -> fake, older profiles -> genuine account) and that's about it. Not to be cynical but I don't find this groundbreaking at any shape or form.