There's also selection bias at work here though - the only responses that'll get media attention are the ones that are novel or 'newsworthy' - we aren't seeing the normal boring comments.
It's unusual for a company that big to have so few leaks in their 14 years of existence, especially one that is that high profile.
My understanding is that FB does not have a "fear-based" culture that would've prevented leaks, so really the only way they could keep people in line at scale is if there was a cultish element to their onboarding process that makes people "love" FB so much that employees are actually so offended by a leaker to make comments like this.
Fairly capable private investigative and security forces are pretty common for tech companies now. I am not surprised Facebook falls into this category.
They obviously can intimidate employees into silence, but it's far more useful and beneficial for morale to go for the "loyalty" angle, and make sure employees shame others who leak.
you'd be surprised by the number of "job opportunities" where Mike Ehrmantraut skills are required (jobs subcontracted to subcontractors) in multinational corporations.
