shtusim
1 – You are only friends with people you confirm. You can talk to anyone through messaging on Facebook (not in all cases), email, texting, calling, etc. This is not a problem with Facebook.
2 – What “total” strangers is she talking to? Facebook is meant to connect friends and as I said before, friends must be confirmed by both sides.
3 – True.
4 – Some people don’t care if everyone (that they’re friends with) sees what they made for supper. There’s nothing wrong with that.
“Be smart and careful”
Definitely. As with everything in life.