Facebook - the Good, the Bad, the Unexplained

I'm very new to Facebook.  I started using it early in 2010.  I've enjoyed reconnecting with people that I haven't seen for years.  I've also enjoyed being able to read about friends and family updates.  But I have a quesiton.  Why does Facebook make it easier for people to post their religious views?  There are people that I've been friends with for years and have never heard them speak of God but now that I'm on Facebook, those same people are posting their love of God and asking others to post the same.  I'm not offended by any of it.  I am curious about it.  Is it the "anonymity" of Facebook that makes it easier for people to post about God?  I don't know.  What about you?