Wow... very nice feature/idea on that DropBox approach, thanks for pointing that out. Not only could you use that for multiple clients, but if you were ambitious you could technically bring back something like AngelFire or geocities. 😂
Additionally, you would think that after the flaming failure of project.json, where it was horrifically discovered that JSON does not support simple constructs such as comments that more efforts would be made to steer clear of it altogether (or again at least, offer an XML/Xaml/YAML/TOML -- or even INI! -- counterpart).
Truly maddening (not to mention embarrassing) to watch the incompatible divide between .NET and JS continue to be reinforced by MSFT own internal developers.