Right, that's a great point. If the set of features that aren't supported in the jsDoc equivalent are the same set of features that end up requiring runtime tra

Right, that's a great point. If the set of features that aren't supported in the jsDoc equivalent are the same set of features that end up requiring runtime transforms, then I can picture this to be an excellent way to use TypeScript the same way I do with Flow (which also supports a comment-mode syntax, but it doesn't have as compelling a use case in Flow since the standard syntax doesn't require any transformations to begin with).