And I'm not just talking about the threads where something exciting/terrifying/overwhelming is happening and we're all desperate to know - those are sad when you don't hear but generally, I tend to assume that possibly the OP has something else to do.
But surely when someone asks for good party ideas, or information on something, a simple "thanks" wouldn't go amiss? When I email a friend asking for something and she emails back, I reply?
Or am I just missing the point of the internet...?