I do this often. Download an app that sounds interesting but I don’t really fully understand what it does. Then when presented with a roadblock of creating an account for something I don’t know will be of interest or provide value, I stop.

App creators need to stop roadblocking their features and value - especially to new users. Let people experience the features and decide if the app has any value to them. If it requires demographic information, use a reference persona to inform and illustrate functionality. Allow users to then modify that persona and save it (create an account / register) for future use.

If there is some success with your site, consider investing some time to grow it as a learning opportunity for how to grow your next idea.

Stripe’s request is not unreasonable. Anything financial is highly regulated for good reason. Your expectations are not realistic.