What you wrote about Medium is correct. But you missed the problem.
"Writing is not about writing," as I posted on Medium. It is about communicating with others, with the purpose of making the world a slightly better place than it was when we arrived.
The common denominator of all disappointments and complaints on Medium is that this platform exists solely to "spread ideas that matter" to Ev Williams. The quote is from Ev's invitation letter to new Medium subscribers.
I wrote for publications that aspired to make the world a better place. It is fun, it is exciting, it is addictive, and it is satisfying. Every writer's unspoken and inner desire is to participate in that kind of social experience.
Writers at Medium are disappointed because Medium is not about writers collaborating in bettering the world. It is about propagating ideas that matter to Ev Williams and stifling all others.