A few days ago Andrew Mason, a founder of Groupon, sent a letter to his employees saying that he is fired from his CEO position at Groupon. You can read more about it in Time.com article.
This news didn’t surprise many. Since their initial stellar growth a few years ago Groupon recently failed to grow any further and increase profitability. One of the main criticism of the Groupon business is their failure to use their massive data to target their business more efficiently.
Therefor many users were tired of floods of deals which were not personalized enough. The writer of this article having some personal experience working with Groupon and selling vouchers for his local business can definitely confirm this problem.