A tip, maybe useful for others:
#Substack is great. But #email is definitely a crappy way (at least for me) to find and read (a small subset of) my favourite thinkers' posts.
This has been nagging me for a while.
I just confirmed that Substack publishes #RSS #feeds (just append `/feed` to the “home” view of any publication). So I'm unsubscribing from almost everything, and adding the feed to my #Feedly instead.