Or anything else, except speaking up, as demonstrated here. I mean, someone made a comment implying FB only removes really nasty, criminal things, but they don't get told that "it's Facebook's business" (even though it would apply just as much, but never is applied, to supportive comments), instead the response that adds some grounding in reality does. This is a discussion site, and the correct response to GP is to respond to GP, not do something else elsewhere.