I was pretty sure I had read this before on HN but it turns out it was the previous blog post, when he was only earning $400/month:

https://www.stevebenjamins.com/blog/spotify-and-discover-wee...

Still it would be better if the posts had a date.

I have 14 "weekly" listeners on Spotify but I only started a month ago. Still, I'm short of ideas on how to grow this.