As a stripe customer for 6 years, I effectively only care about reducing transaction costs. Period.
Stripe's core business is being a part of a "credit card sales tax" that is substantial. Much of this is the fault of Visa/Mastercard/Amex, but that is the problem-space they exist in. Payments are transferring bits, and should be effectively free. If they want to "make the world better", that is basically the only problem that matters in their space, and I never see any recognition of this fact in anything Stripe puts out.
They do a LOT of work to try and make me feel better about the tax (e.g. your money goes towards book publishing!). None of it works, it just seems like the "your tax dollars at work" road signs.
Now maybe people at Stripe are working on ways to reduce the tax on businesses/consumers. It is not a technical problem, its societal. I hope they are, and they will announce something amazing and I can worship at their feet.
Please Stripe, work on reducing the costs to transact online by 1-2 orders of magnitude, where it should be.