AndrewHickey,

What am I doing about it? I'm making the meta-ethics relevant to Friendly AI the central research program of my career.

Even if that weren't the case, I think that pointing out the problem without immediately, in the same blog post suggesting possible solutions is productive.

I don't read it as a call-for-action-by-others at all. It seems that with this post and the previous one lukeprog is responsibly trying to verify that a problem exists, presumably as a necessary prologue to working on the problem or at least trying to strategize about how one might go about working on it. And I also don't agree that it's generally unproductive to point out the existence of problems without simultaneously offering suggestions about how to solve them: sometimes the first step really is admitting (or realizing, or verifying) you have a problem.

Andrew, I congratulate you on your intestinal fortitude in leaving that comment up, unedited, for others to learn from. Reminds me of http://news.ycombinator.com/item?id=35079