Substack does have all these sketchy patterns but there is a 'Let me read it first' text link on the popup that lets you continue, seemingly without tracking how many times you've done that.
BUT I made the mistake of actually signing up for one blog I liked and got smacked by a barrage of more 'sign up for this!!!' immediately after. So I agree that it's user-hostile but... it seems like most of the web is moving that way, outside of our digital gardens.