> For all of its warts, YAML hits the sweet spot between readability, writability, commentability, and (mostly) intuitive syntax.

Could not disagree more strongly and it seems many others in software agree, based on this comment section and the original article.

> It's easy to serialize complex objects to, and comes bundled with Ruby's runtime.

I don't know that Ruby support is why it's widely adopted. Ruby is common in some spaces, but not a wildly popular language at all.

I honestly think some popular project (maybe Docker Compose or something from HashiCorp?) used it for a config file and then everyone else started doing it too.