I wanted to provide a flip to the discussion asking people for the worse in person experience. This doesn't necessarily have to be in person, as I just had a wonderful example of an artist being extra kind to one of their fans. 

Not many people are aware of the group The Swell Season (however they have a cult type following), in fact they aren't even together anymore. They are Glen Hansard and Marketa Irglova, if you have heard of the movie Once then you have seen…