This has nothing to do with tipping. Groupon is a flawed business model. Consumers who are willing to pay $ for something are not going to be repeat customers

This has nothing to do with tipping. Groupon is a flawed business model. Consumers who are willing to pay $ for something are not going to be repeat customers who will then pay $$$ for the same thing. It's a modified pyramid scheme, the only people that benefit are consumers and Groupon it self, even though they are losing money out of their asses.