>The trusting developers not to sell any data but putting zero safeguards in place to prevent this and extremely punitive repercussions despite being repeatedly told by the public, media, and even high level employees tells me Facebook can't plead ignorance to this and they not only knew this was happening, but they probably intended for it to happen.

Why would they intend for it to happen? They didn't make any money off of this exfiltration, CA paid people via Mechanical Turk to install the application so that they could mine their data. Facebook didn't get a dime. In fact, they have a monetary interest in preventing this, because their data is worth something and these guys just got it from free usage of their API. So the insinuation that Facebook wanted this to happen, or looked away because it benefited them, makes zero sense.

What kind of safeguards are you imagining? How do you have 3rd parties interface with Facebook without letting those applications reason about the information within a Facebook account? Tinder is valued at over a billion dollars and it's not possible to use it without a Facebook account-- should Facebook shut that down and ban the entire concept of 3rd party Facebook interaction?

I do not understand the anger. They did nothing wrong. I can't believe that people are legitimately arguing that users shouldn't have a right to expose their information to apps.