People do shit all the time that they don't understand can rightfully generate fear in the other person. If someone is walking and you pull up on them to ask for directions, how in the world does that person know that you mean them no harm? Asking for a light, asking for the time, these are good ways to initiate an encounter that enables the attacker to get into the victims personal space.

If you're against street hollers and how they make a woman feel in danger, you should also be conscious of other situations that could be a precursor to an attack. Because, you know, no one ever got raped or robbed in a parking lot!