Back in the day, before there was the beautifully simple Stripe, I had to implement payments on Authorize.Net, which made PayPal's APIs look great. It was cumbe

Back in the day, before there was the beautifully simple Stripe, I had to implement payments on Authorize.Net, which made PayPal's APIs look great. It was cumbersome, ugly, they had libraries that weren't documented. I was on the phone with their support multiple times in the week it took to implement. And then after implementing it and pushing it to production, customers started using credit card OVER PayPal, and within a month we were fielding over 10 charge backs per day. And within 2 months we abandoned taking credit cards all together which alienated a subset of our customer base who lived in parts of the world that PayPal doesn't allow accounts for.