I really dislike these type of comments. Yes we all like to hate on PayPal. It has questionable business practices and its products aren't necessarily cutting edge as compared to say Stripe. But let's just pause and recognize this http://www.datanyze.com/market-share/payments/paypal-vs-stri...

So there's nothing wrong in creating a business that serves a wildly large number of customers out there. PayPal dominates the market outsides of startups and the valley tech companies, and as such a huge market to build a product or company around.