I neither claim to be the center of the universe nor expect random strangers to take time "to exchange strokes with me". That said, if I'm out in public and someone politely says "hi" or "good morning" to me, and I choose to fly off the handle, the fault is mine. I'm also not willing to excuse myself for ignoring panhandlers or those selling **** on the street because these people are also part of my community, and deserve to be recognized as such.
In a public space, I expect to encounter other people. Sometimes they're friendly and helpful, other times they're rude and hinder me in my daily tasks. Still, they deserve my recognition and respect. I think fostering an open, friendly, communicative society is a good thing. In doing so, we are more protected from harmful anti-social behavior and people. That you think otherwise reflects incredibly poorly on you, and I'd advise you to stay the **** away from any city where I live.
this from a (formerly?) self-described hermit!
But I pretty much agree, though I do agree to some degree (time to rhyme?) with One Brow to the degree that non-verbal clues are usually part of the interaction. Much of the time eye-contact is made, even if very fleeting, before I extend any sort of greeting, but definitely not always.
Very few people will completely ignore a greeting and while I've occasionally gotten a surprised or startled response from an "unsolicited" greeting, I've never had anyone react in a hostile manner.
I walk early every morning and often see the same people daily, many on their way to the train, and brief greetings are usually exchanged. There is one man we see almost everyday, and have for about 5 years now. We generally smile and say "Good Morning" to him and he pretty much always just stares stonily ahead.
Not sure what to call it but he definitely seems anti-social and not quite normal.