Email Jokes --- The Modern Hello?

Last week I received an email cartoon that really hit home. It explained that forwarding email jokes, cartoons, and maybe other useless information was the modern way of waving to your neighbor just to say hi or to let someone know you hoped everything was okay with them. Made me think about what it means when someone does not acknowledge your "forward" or other meaningless email. Does it mean that they don't care if you say hello? Is it the electronic age 'blow off'? And then think about how you feel when someone even writes "thanks" or "thkx" when you forward them something. Makes you feel 'appreciated' for your effort or thought doesn't it? So to my friends who take the time to send me an electronic 'hello' and to acknowledge mine -- thank you!