I was thinking about the 'onboarding' issue for powping.
i.e. Having moneybutton as a requisite to join, which limits user scope. You can never get more users than money button already has.
I propose having the ability to create an account with an oauth system that already verifies ID such as venmo, via middleware. Then when they get 'tipped' by someone, give them that they need to set up a bitcoin wallet to get it before directing them to Money Button (or whomever else).