It does answer the questions by reformulating them in exactly the way you did, which immediately highlights the GPs confusion: They somehow missed the subjective and relative aspects of the concept as it is used. There is no objective and absolute measure of want-satisfying-ness (or whatever).

> It's probably more like arguing that leprechauns don't exist.

> In any case, I'm not saying utility can't exist. I'm saying some universal utility can't exist, or if you wish: sorry, guys, you can't determine my utility function for me. I'll do it myself, thank you very much.

This is what I'm responding to.