Processing credit card transactions is a hard enough problem that it rarely makes sense for any non-payments company to do it themselves. Dropbox and Airbnb use Braintree (a Stripe competitor) for payments, and they are both much bigger than Kickstarter. Even Twitter and Facebook have been known to use Stripe for various products, and they are obviously much bigger than Kickstarter as well.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.
Non-US projects already use Stripe. This moves means both US and non-US projects will use Stripe.