How dare someone not respond to the email of a gallery coffee director within the hour! Obviously that makes them a bad artist. I like how the OP has anointed himself as the judge of other's work but instead of actually judging the work itself based on its own merits (which he can't be bothered to do) he instead relies on personal attacks and poor measurements like how fast someone responds to an email from him.

Maybe these artists were put out by the odd relationship of corresponding with the guy who runs the coffee stand for their show? He strikes me as the kind of person who needs to be involved in everything, but doesn't really care about anything. Huge ego and constantly judging everyone around him. He would make an excellent manager in corporate america.