I have some Constructive Criticism for Substack, but first let me reiterate that I think Substack is the Shakespeare of online discourse compared to the comic book contributions of twitter, facebook etc. That being said, there should be a way for authors to see, and comment on, the ‘subscriber only’ materials of other authors. It would foster more in-depth exchanges among and between authors as well as raise the overall level of discourse for subscribees (if that’s a word).
Or you could purchase a subscription to the authors you like? Maybe authors should discount subscriptions for other authors?
That seems fair.