It's awesome to watch massive shifts in values and priorities.
Smoking used to be seen as cool, sexy, even healthy. Now it's widely seen as unhealthy and disgusting.
Same thing with high-fructose carbonated beverages.
I remember people using terms like "retarded" and "gyp" without hesitation. Today even people who hate political correctness don't talk like that in public.
It wasn't long ago that men abusing women in the workplace was routine and unremarkable. Now it's outrageous and shameful.
Things change, slowly at first, and then all at once. People are waking up and it will never be the same for Facebook.