> [Autobiographical memory] might be boosted by anonymity and pseudonyms, as a way to pull down barriers to risky behavior, but anonymity and pseudonyms do much less for aggregate [utility per person] than postmodern, perceivably rigid reflections of reality on Facebook do.

There's a lot here about self-gratification through performative identity, but nothing about the value society derives from the unflinching evaluation of unpopular ideas. I find this to be nearly absent in "this will go on your permanent record" oriented venues, which in turn is why I find those all but useless. It's reception and counters to my arguments that I value; what I write would be anonymous (and on slashdot it was) if a dissociated pseudonym weren't required.