I will switch to nothing but software of known origin of which I have met the authors and have had an independent security evaluation done. In my line of work, you trust nothing until at least two independent evaluations confirm that it's kosher, and the authors and the company behind them are not exposed to leverage to "add features" under duress.
As for Facebook, they proved me wrong. When they started I thought that only Google could grab so much data unchallenged, and I must give them credit for coming up with a model that allows the victims to believe they're actually doing them a favour. Worse, getting companies to only offer support through there so customers have no choice but to sign up was an extra stroke of genius I wasn't expecting.
So yes, it CAN get worse.