[snowedin]

There's been fake generated profiles on Facebook for over a decade. I know this because I had some, I was targeted by some, and I had "security friends" who generated some. Over the years I've seen several campaigns of groups of fake profiles trying to collect access (by "friending into" friend circles).

At university my security club had a member who gave a presentation on algorithms for detecting and generating fake profile posts for Facebook, through which he created sock puppets and also found a ton of others belonging to "who knows which group". That was around 10 years ago.