Where did Eliezer talk about fairness? I can't find it in the original two threads.

When Eliezer wrote,

While some people tried to appeal to non-linear aggregation, you would have to appeal to a non-linear aggregation which was non-linear enough to reduce 3^^^3 to a small constant. In other words it has to be effectively flat.

I am taking the inferential step that he was responding to everyone who appealed to non-linear aggregation, including those who just said "we value fairness" without saying or knowing that a technical way of saying that was "we compute a sum over all individuals i of f(utility(i)), where f is convex."