That means no political views, no off-color humor, NOTHING that I would not say or post in public, in broad daylight.I also have no fear of an employer "finding" my Facebook profile (actually, my boss at my current job is Facebook friends with me, as is his wife, the co-owner of the company)... but I have a different take on it than you do. I absolutely post political opinions, off-color humour and all manner of controversial items to my FB wall. I just don't care who sees any of that stuff, since A. I doubt most potential future employers are going to care about any of it and B. IF by some amazing chance they did, then - by definition - I don't want to work for them.
So, if $BIGCORP is bothered by the fact that I'm a pro-gun, Libertarian atheist with a "thing" for tall redheads that look like Karen Gillan, then f%^# $BIGCORP, as far as I'm concerned. There are enough other employers out there, I'm not going to waste my time trying to appease every Tom, Dick and Harry that comes along.