The big difference is the new enthusiast joins in the conversation, or even, memorably, as did a certain bovine, extracts a whack of data from past posts and reports on a statistical analysis of it. I was only half kidding when I suggested we codify the questions and answers and when someone posts "can I have a lounge pass for FRA MLL and will someone upgrade me and my gal on our non-status Tango honeymoon?" we can say "23, 68, 17".