By the same token, I think a lot more people feel "hinky" about the idea of bf, public or private, than have actually seen anything untoward. My own dad, for example, was extremely nervous and uncomfortable when I first began nursing my first child. I tried to be considerate of his feelings, but we were living in the same house for a period and there is only so much one can do. Once he saw that it was actually a very quiet, un-ostentatious process, and he was not going to have to flee the room to avoid seeing his daughter undressed, his fears were allayed and eventually he did not turn a hair when I fed the babies in the same room, or even sitting on the same sofa.
It's just too unfamiliar to too many people, and moms who act normal, human, and kind, are going to do more to promote acceptance than folks who scream, yell and do "wierd" things like strip off their shirts in other people's faces. Nursing is normal behavior, and if we act normal people will accept it as such. If we act wierd, people will always think it is wierd.