How to Be a Gatekeeper on a Platform

Uber is doing it on purpose, with a point of view. Once they make a decision about someone being discovered, they put all sorts of energy into promoting that person. The system gives them a chance to earn permission, a connection directly with their fans. Twitter doesn't care what you're reading, because twitter's not in the business of helping someone's tweets reach more people. Just let the system sort itself out, a forxonomy. Just let it all get filtered by humans connecting with other humans. They don't care. And so how do you get a creator to show up and do their best work if you're not going to help them in any way?