I upvoted because the formalization is interesting and the observation of what happens when we average values is a good one. But I'm still far from convinced IC is really what we need to worry about.

Empirically, value systems with high IC resemble conservative religious values, which take evolved human values, and then pile an arbitrary rule system on top of them which gives contradictory, hard-to-interpret results resulting in schizophrenic behavior that appears insane to observers from almost any other value system, causes great pain and stress to its practitioners, and often leads to bloody violent conflicts because of their low correlation with other value systems.

I think all of this applies to my liberal values: arbitrary rule system on top of evolved values? Check. Appears insane to observers from almost any other value system? Check. Causes great pain and stress to its practitioners? Check. Bloody violent conflicts because of their low correlation with other value systems? Double check!

And I still like my liberal values!