I make mobile FB updates about range days, or work-hour activities at the gun club, unfortunately those are so few and far in between that I don't think it makes much of an impression.
And my friends list probably skews pretty hard to the pro-gun/neutral side of things, and any die-hard anti's are probably the quiet sort who are too polite to ever say anything.
As Monkeyleg knows, my club, his former club... has a no-shoot-alone policy for liability/CYA reasons because the area surrounding it is pretty suburban now. The only real fallout from a FB post made from the range was with my wife.
I posted a complaint I was waiting alone at the club hoping someone else showed up, but that I'd wait the entire time I'd set aside for shooting just listening to the radio in the car if I had to, "Just on the principle of the thing." (namely, spending MY TIME doing what I WANTED, even if it wasn't successful)
Mrs. Dual was kind of put out that I wasn't joking and I'd really have sat there for half a day alone instead of coming home to more domestic drudgery. Too bad.