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wuwei comments on Hacking the CEV for Fun and Profit - Less Wrong
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I can see why you might feel that way, if this was just a technical flaw in CEV that can be fixed with a simple patch. But I've been having a growing suspicion that the main philosophical underpinning of CEV, namely preference utilitarianism, is seriously wrong, and this story was meant to offer more evidence in that vein.
CEV is not preference utilitarianism, or any other first-order ethical theory. Rather, preference utilitarianism is the sort of thing that might be CEV's output.
Obviously CEV isn't identical to preference utilitarianism, but CEV and preference utilitarianism have the following principles in common, which the hack exploits:
It seems clear that Eliezer got these ideas from preference utilitarianism, and they share some of the same flaws as a result.