[ilyt]

I think problem in this particular case is using YAML as DSL. Every other data format would be equally bad here. Replace YAML with TOML and you're still in same templating hell.

YAML is least worst for me, and I don't think I ever hit the problems article is showing because

* I use editor that will highlight stuff like anchors

* I often generate config from CM so it can't have those errors

* Loading into defined struct in statically typed language also makes them impossible.