This isn't his first time posting about being inundated with AI spam. I suspect that, being a moderately famous writer, the level of spam he's receiving is a wee bit more than a normal person is used to. And I get a _lot_ of nonsensical AI spam myself.
I work for a company on the list (Aptible), and we do not use Terraform for our customer-facing infrastructure. We experimented with that approach a bit, but I didn't love it. The primary reason I didn't love it is because Terraform itself is prone to flakiness and failures that requires a real human to clean up. This doesn't matter if you're doing it on a small scale (i.e. if you're an SRE and it's just your infra), but doing it at any large scale for customers it just didn't make sense. I do think there's likely a path forward with more flexible tools like Pulumi and CDK, but those are going to have limits in terms of what they're capable of too.
I know less than I'd like about what some of the others on that list are doing, but for a majority of them, they're heavily k8s/Nomad based (which, we also aren't that either, but it's also something we've been poking around at), which lessens the dependency on IaC after you have the initial cluster up and running. Fly.io also has a problem which I consider potentially even more interesting, which is that they run their own severs, so most IaC doesn't even make sense.
https://whatever.scalzi.com/2025/11/22/yes-all-those-author-...