In contrast to some sibling commenters, I'm glad EY isn't doing an AMA. It sometimes didn't turn out well in the past when people unfamiliar with the sequences tried to ask him questions.
That was exactly my reaction to reading Luke's AMA - "no, I probably shouldn't try this."
I'm sure most of us are used to just being able to badger him about things in the comments here on LW, but for anyone interested here's the link.