Agree - I think I first ran across it in your podcast, actually, and looked it up when this post triggered the memory of it. (Might have been the John Doris interview.)

The interesting question raised here, ISTM, is how these experiments and insights fit together - what they seem to tell us, in net, about who we are.

I'm still wondering what to think of the Knobe effect in the context of the OP's observations on debates about free will - is there just an analogy in surface features (people judge X differently according to their perception of X as "good" or "bad") or is there some deeper link between the way people respond to the notion of "intentional" and to the notion of "free will".