I actually don't think it's such a bad idea for everybody to see Aaron's emails, so long as Aaron can see everybody else's emails. Pure transparency would be as entrapping as it would be liberating initially. So long as the transparency mechanism does not discriminate, I think it'd be awesome. You could pledge to go transparent when say 80% of your contacts do too. It'd be an interesting experiment regardless. Friends could see what you're up to and try to help (and you'd get to know someone better by seeing them in new contexts), emailing becomes like tweet messaging someone -- maybe a good startup idea, something like http://Hackerfollow.com on someone's emails, requiring mutual follows - you have to know who's following you and approve them, and the only emails shown to you are those between two people already on the network that have both approved you - the rest exclude you.
So when that comment talks about OODA, all of a sudden with this system the top of a hierarchy can intervene in the bottom, and the bottom knows what the top is talking about. The hierachy becomes a set of intersecting rings of different sizes, there's no top of bottom anymore.
Go read it and upvote it, if you didn't see it yesterday. Good stuff.