“Thus, writing for Medium allows your words to be discovered.”
Not in my experience. I’ve written dozens of Medium articles over the past two years, and on a regular basis, and people are simply not discovering the articles. It’s not for lack of trying.
The only way the articles get any kind of readership is if I post the URLs to Reddit and Hacker News. (The same is true if I publish my articles on WordPress.com.)
“Meanwhile, you have networks to build, coalitions to form, ideas to test. Medium is a great place to do that.”
I’ve not been able to build any kind of network or coalition on Medium. I have better luck on Twitter and Facebook and LinkedIn and even WordPress.