You don’t need Medium permission at all. Of my 40 posts, “only” two were put into Medium’s Editor’s choice. I forgot to mention that. It’s nice, but not required.
Although, thinking in terms of gatekeepers might be a healthy and functional world view. There are often multiple levels of gatekeepers in life and having those levels could be considered a service.
For example, in raising money, the gatekeeper model is to go through your own entrepreneur friends first who introduce you to entrepreneurial angels who introduce you to institutional investors. (Many people have heard institutional investors say they only want to talk to people who can get an introduction from someone they already know.)
Those levels work as a filter (boo hoo if you’re not good enough to pass) and as a valuable educational service. Your more experienced entrepreneurial friends help you prep your pitch. By the time you’ve worked your way up to the big money, you’ve gotten a lot of help and made a lot of refinements. That’s a service, i.e. your chance of a successful pitch goes up.
I’m not quite sure if there’s a universal gatekeeper model in writing. But my description of Flipboard seems to be one. The smaller boards are the first level gatekeeper. Their readers are the second level. Then with enough traction, a Flipboard editor (who may be a person or an algorithm) can pick you up. I like that these systems exist.