When you miss a quote or a brace in JSON, the JSON fails to parse. When you make a similar minor mistake in YAML, you often end up with a valid but nonsensical

When you miss a quote or a brace in JSON, the JSON fails to parse. When you make a similar minor mistake in YAML, you often end up with a valid but nonsensical document with completely incorrect structure. I don't want the language to be flexible enough that simple common errors go unnoticed - I WANT the parser to tell me at parse time if I screwed something up. It's a similar dynamic to dynamic/static typing.