None of us really know the exact formula, and while that's a problem in and of itself, that's the terms we agreed to.
I have set an alarm to remind me to delete my account on 8/31/ 2020. If I had any realistically non-painful way to delete multiple items at once, I might take a less drastic step. But life's too short. Export your data now, and delete it before 9/1/2020, of your continued use of Medium constitutes agreement to the new terms. There's just really no way around this.