Nah to me "rockstar ninja" it is just a marketing term. Sure it sounds great and may fill arenas of recruiters but I still can't quite define what such a person is.

Is it a good programmer who knows all the bits and bolts of a given language or an adaptable developer who can master concepts from another programming language? Will the ideal candidate write good code AND good tests?

It's just too vague... Simply doesn't rock my confusion.