I don't understand this "argument from incredulity". It has leaked - you found out about it. Do you want them to publish an article in NY Times saying "yes, we spy on you all the time"? Do you want a personalized letter? What, exactly, is the form of this "leak" you expect would happen if this were true?

Just in case you are serious here: a random anecdote on a forum discussion doesn't count for anything, definitely not for a "leak". That parent message had a wild claim which of course requires serious proof.

Edit: since you're asking, proof could be multiple testimonials from ex-engineers working on the project or a peer-reviewed article in a serious journal. Until that this is in the same bin with healing crystals and chemtrails.

Right. Testimonials in violation of their NDAs.

Whistleblowers never prosper, at least in the US. Too many examples, take Stingray for a less controversial one. What was the result? Crickets. Exactly what would be the incentive for those engineers?

Myself, I'm a Bayesian and I grew up in a communist country, which means I start from "of course everyone is spying on me, all the time" and require strong evidence to change my mind.

>Right. Testimonials in violation of their NDAs.

You're expecting 100% of the engineers at Facebook (or previously at Facebook) that know about this to comply with the NDA. And history shows that 100% of Facebook employees will not keep quiet about Facebook doing bad/illegal things.

I don't need to change your mind, so I won't try. I'll just say that it must be very tiring to believe every conspiracy theory by default. To me it seems like a sad way to live.

>It has leaked - you found out about it.

Where?

Really? In the parent message.

Yeah, really. Because I ain't seeing anything.