I can't think of an example of Facebook taking away a preference setting that users have adopted. Even Facebook doesn't take away controls it has freely given.

I can't think of an example of Facebook taking away a preference setting that users have adopted. Even Facebook doesn't take away controls it has freely given. It would be one thing to take away the toggle button. That might happen, and it would suck if it did. But to go in and pull out a user setting that people are using, that would be astonishing.