That is not proof that the question is empty, of course. All it demonstrates is that one of your arguments in defense of its non-emptiness is flawed.
Non-emptiness is no more flawed than emptiness. The Open Question remains open.
This is a nonsequitor. My claim was about a specific argument.
There seems to be a widespread impression that the metaethics sequence was not very successful as an explanation of Eliezer Yudkowsky's views. It even says so on the wiki. And frankly, I'm puzzled by this... hence the "apparently" in this post's title. When I read the metaethics sequence, it seemed to make perfect sense to me. I can think of a couple things that may have made me different from the average OB/LW reader in this regard: