Medium seems to have it backwards

Medium.com sends curated content to my inbox, then when I’ve read a certain amount they ask me to sign up. To me, the curation is their value add. All of a sudden you want me to pay $5 for access, but along with that access I’ll have find things to read instead of them being sent to my inbox?

This alone is a thought that there is a lot of room for product differentiation, even if it’s just in the way billing is done, and what is paid for vs. free.