I was not that poster, but I got my acceptance to the PhD program on February 28 via snail mail. There were no funding details in the letter, but I talked to the graduate director. She said they are making funding decisions at the end of this week. It sounds like a small cohort (8, I think), and they can't fund everyone.
I saw two posts on the Results page that were Duke acceptances, received on February 28. If that was you, I was wondering if that came about from the visit weekend and if you had a feel on whether more acceptances might be coming down the line? Just part of the futile search for answers.