Hello @Nathan_Tankus, nice to see you making the move to Ghost from Substack.
Regarding your question of removal of unsubscribed members, there’s been no official word from Ghost that I know of, the best I can offer being this other thread with various reasoning for and against such an option:
As an aside, I just read your latest post where you mention that
Over the longer term, I am planning on building my own website where I will have room for many different types of content (including a podcast!)
I hope that implies sticking with Ghost, seeing how Ghost is slowly becoming more and more amenable to such things.
Cheers.