Thanks, Avangi and Gleb! 'Who' and 'what', as interrogative pronouns, can serve as subjects, I agree. That's what I meant when I said that they take the subjective case (other than 'when', 'where', etc., those

This is a different issue from whether or not that rising intonation is appropriate, or whether the author himself would have used it. What I've been arguing is that the rising intonation is inappropriate..g It's already been pointed out