One thing that comes to mind is (for data interchange), it allows for custom objects to be explicitly marked as such http://www.yaml.org/spec/1.2/spec.html#id2

One thing that comes to mind is (for data interchange), it allows for custom objects to be explicitly marked as such http://www.yaml.org/spec/1.2/spec.html#id2805712 http://www.yaml.org/spec/1.2/spec.html#id2805712 additionally, it allows multiple top level objects in one file (which JSON can't do (not counting 3rd party modifications)) other than that, not much other use