I think they lost a lot of us as soon as the G+ train started rolling.
I care when services that I do use, purely by virtue of being bought/owned by google, are claimed by a social site I don't use.
And as a result, I never used Quora.
https://www.facebook.com/help/224995697512520 https://www.facebook.com/help/292517374180078
In fact, the question is frightening. Are we, prisoners, afraid that our benevolent jailers no longer pay us enough attention? That they've lost their touch to slyly subdue us by painting the convincing illusion that they have our best interests in mind? Have the abusive guardians' charms lost their potency on their admiring wards?