I think you might be wondering what's up with the previous post by Evan. I'd attempt to summarize the situation, but Daniel Jalkut's done a much better job than I could. I highly encourage you to read his post. As someone who was there at the conference, I have to say I agree with a lot of what Daniel says.

DB has been a friend of the project in the past, and he was a welcome participant at last year's C4[0], but I'm a bit concerned by his actions at C4 -- many attendees, myself included, had a very sour experience at his panel.