My Mom is on Facebook. And she yells at me on Facebook too.
I will say there is another side to this (isn't there always). Regarding women who swear:
There are men out there ~ not here, as you are all gentlemen ~ who see polite, lady-like behavior and think, "weak" or "easily manipulated". They try to push, prod, cajole. You say, "No" very clearly. They hear, "Not right now, but please, try again later." You can say, "No" several times and still not be heard.
I've noticed that one good F-bomb takes care of that problem.