Ive been giving it some thought. Does this theory make any sense to anyone?
I think that perhaps most BPers and Flatbushers, do whatever their Rabbonim tell them to.
Is it possible that more or most Rabbonim in Flatbush encourage their congregants/Chassidim to greet strangers on the street (because they dont have to be just like you, theyre still Jews), than Rabbonim in BP?