Stripe landing pages almost always get tons of support on Hacker News. This isn't because they're just a good payment processor -- it's because their landing pages are unlike anything else in the industry. They could have slapped together a static site in Jekyll with custom styling and called it a day. Instead, they labored over a landing page that feels well designed with immaculate attention to detail.
Did they have to do any of this? Not really. But it shows on the outside -- and it works. Given that the world is filled with design that just copies Apple and Google, supporting creative R&D is a huge plus for them.
Internal tools are the best way to do that -- they let people experiment and learn without fear of consequences on the outside.