Tim, excellent piece man. Very well done. Hopefully Substack learns from Medium's mistakes and keeps discovery to a minimum.
I think the key to this dilemma is balance.
2% of my subscriptions come from Substack internal, the rest is external. So, you want the platform itself to strike this balance as well as you want to mirror the platform's balance. I'm good with 2% coming from the platform. It makes me more confident in my brand, knowing I'm not dependent on a platform to give me views and followers, but it also doesn't close the door to getting discovered on the platform either. I will definition check out Beehiv.
Thanks, brotha.