FWIW, Yglesias probably cost himself me as a subscriber by being too prolific. I subscribed to his substack for about a year (and liked it), but started to feel like I'd kind of heard what he had to say. Reading around 200 (short) essays from someone is a good way to know their opinions pretty well!

I feel like if he had done three essays a week instead of five, I might still be subscribed. I still like his basic approach, just, it feels like a retread of what I've already seen now.

I might be an outlier. And I think Read's larger point stands: posting regularly is a huge asset. One per week is less powerful than five per week, and four per month on no real schedule is less powerful than one per week.