OKW and BWV are sold out but sometimes Disney gets points back (takes a right of first refusal on a contract, someone defaults, etc.) They recently decided to sell these points to current members as add-ons. They put the names on their waiting list into a lottery to decide who would be offered the points. I understand it was a pretty small allotment. Since this wasn't announced to the membership at large I don't feel it was entirely fair. To my knowledge, they've never done this before and I hope they don't handle it this way in the future.
The DH, DD, etc. stands for something with a "D" -- Dear, Disney, etc. and the second letter is Husband, Wife, Daughter, Son.
Sometimes DD means Downtown Disney -- but I think you figure out the different uses for DD.
