Absolutely, I was so proud of my Google skills for finding this blog three weeks ago, and now it's on top of Hackernews. The series about the decline of the Roman empire is amazing.
Funny you've never seen it on HN before, his weekly post show up on the front page almost once a month in average for the past few years. (From here[1] I've counted 8 appearance in the front page in the past 5 months)
[1]: https://news.ycombinator.com/from?site=acoup.blog