Facebook woman should probably have a better gauge of her friends', and read their walls and similar beforehand. I'd definitely think it was a bit odd if something like that got posted to me. Might say something if it was someone I knew really well, otherwise not.
I find that the 'wait for marriage' people (male and female) tend to judge women much more harshly if they don't..even have met guys who aren't virgins themselves, but want their future wife to be! It creeps me out. And this guy fit the pattern, with the 'women who have sex before marriage' not 'people'. And also...while he's entitled ot his opinion, he should realise that it's not the majority one in many places, which doesn't mean he should change his own behaviour, but if he's going to paint everyone who's had sexual activity before marriage like that...that's most of the world! It's like, I have vegetarian friends who definitely feel that it's the moral choice, but they also realise that social standards right now do dictate eating meat, so to claim most of the world is awful for doing it..yeah, rather over the top.