Being so open and liberal on Internet is very easy. Nobody knows , everything is hidden behind the cloud of electrons. But in real life would it not be hard for girls to be so open and liberal ?
I can't speak for other girls but I am open and liberal to a certain extent in person too....but it really depends on who I am talking to. I cant be that way with everyone.
Age plays a factor in this as well...the older you get the more comfortable you are in your own skin....the more comfortable/confident you are with yourself the more likely you are to discuss such "taboos".