Haha I didn't know who he was. But the fact Alex Debrie follows him is certification enough for me. And I was wrong. Looking at his Twitter, it looks like he knows 2000x more than me about servers.
If you want more blog posts for Hacker News, take him up on the offer and then blog about it: "Cperciva replaced our millions of Lambda invocations with one m6g.medium and now I'm stuck as a FreeBSD admin!"