The thing about this "it would still be great to see dependence on advertising broken" is that Twitter has been built and tuned for a brand advertising busines

The thing about this "it would still be great to see dependence on advertising broken" is that Twitter has been built and tuned for a brand advertising business model. Is that the best business model? Debatable. But changing it deep in self-inflicted crisis only reduces the odds of success. Changing without an expertly informed theory of what could work is even less likely to succeed.