Comment by freddie_mercury

The minimum price is enforced by Substack, unfortunately. You can make everything free but you can't charge, say, $1/month. It definitely pushes the platform toward writers who think "I want to make this my full-time job & income". It also definitely suffers from, to a lesser extent, the Medium problem of way too many people thinking it is some kind of get-rich-quick thing. Somehow the Reddit algorithm started showing me the substack reddit, which seemed to mostly be pretty new authors complaining that they aren't making much money from Substack.