Full article at The New York Times
"“The big issue here is that this is putting a new social pressure on
customers,” said Michael Lynn, a professor of consumer behavior at the
Cornell University School of Hotel Administration, who studies tipping. “It’s
up to me to leave the change in the tip jar, or not. Yet when you turn the screen
around and I have to explicitly click ‘No Tip’ in front of you, that’s a lot
harder.”"
James O'Brien