Guidance on how writers can use topics, and how topics can impact the distribution of your story is included in the Medium help center in several places:
https://help.medium.com/hc/en-us/articles/214741038-Using-topics
Susie, I really appreciate your passion about this issue -- and also, I'd love to encourage you to come to the conversation in good faith. Medium's success is based on the success of our writers. It's not in our best interest to withhold information -- we want everyone as educated as possible, which is why we publish stories non stop on The Medium Blog, host events like Pub Crawl and Medium Day, and why I'm here in the comments talking with y'all when I'm supposed to be working on product briefs.
I'm always happy to answer questions, and I hope we can both come to those conversations in good faith.