Behaving in all interactions, public and private, as if a Police Panopticon is watching you.
It well May Be! Facebook is not your Friend, absolutely. I do agree that personal conversations are better had Face to Face.
But blaming oneself, or victims of the Digital Panopticon, for their ineptitude, is very disheartening.
Of -course- they could have had better opsec. But for another Example, of -course- any Suicide victim could have also chosen to "do better" instead. Equally insensitive advice, even if it is true.