Do you think it's fair to "police" what your friends say on FaceBook?

I have a friend who posted this on their page recently:

“Fair warning: I love all of you, but if your posts have the f-word in them you will be deleted. If you like a picture from a page with the f-word in it and it shows up on my page you will be deleted. It’s disrespectful to me and also my kids see it and that’s not what they need to be exposed to. Call me a jerk if you will, but my moral standards aren’t going to be pushed any further… I guess all those years with soap in my mouth really paid off Mom!”

I just went ahead and told her goodbye before she deleted me cause I’m not about to change my page just cause she can’t control whether her kids happen to log into her account or nose around in her FB when she leaves it open. I am curious the different points of views that others have here on Fluther. On the FB feed she received a bunch of kudos from closed minded religious types so I thought perhaps views from the open minded and intelligent may be refreshing for me to hear.