As usual, you need to find a way for whatever you propose to be a cheaper and more convenient way to work for both app writers and app users and at the same tim

As usual, you need to find a way for whatever you propose to be a cheaper and more convenient way to work for both app writers and app users and at the same time profitable to whoever runs identity services. Currently the convenience for users and profitable to providers pieces don't work quite as well in open identity solutions. Hence the widely used ones are all side effects of other services like email or social platform etc.