Someone from my antenatal classes was/is a member on BB. I'm not sure that she ever posted much, or if she still does, or if she is reading this? After we had our babies we had a class catchup and she told me she had read my birth story on BB. I didn't mind that she had read my birth story at all... but I kind of felt weird when I realised people could just know who I was and read all the other posts I make too.