* Yes, for many people "not noticing" is considered a sign of
       rudeness. Like you said, it's a reaction-thing more than an
       intent-thing... although there is an implied intent (because
       you did think them important enough to notice).

       So they're partially correct... in a strange way I suppose.

       Still, the whole "Social Game" is annoying just the same.
       "Don't notice me" = "You're rude" = "I'm not important to
       you" = "You don't love me"... etc. Very mathematical game...
       and I don't care for playing it.
       I stick to basic social graces. "Hi". I like "Hi". Or a
       grunt. I can grunt. But if I don't get it? Doesn't matter. I
       usually prefer to slide through social situations unnoticed
       anyway. Their lack of acknowledgement of my presence doesn't
       make me suddenly disappear. I'm not constructed by their
       noticings. I have substance.
     *