I'm guessing there are tons of DVCers on wait lists and wondered how you can find someone on the BWV wait list for the same week. Member services will not tell you how many are in front of you.
If you want to swap DVC reservations with another member you can post a "Trade Wanted" thread on the Rent/Trade board. This works best if you try to arrange it prior to making a reservation at your home resort because then you can post your trade thread as far in advance of your travel dates as you like. If you have a reservation already made then you cannot post the "Trade Wanted" thread until you are within 30 days of check in. Read the "sticky" threads at the top of the Rent/Trade board for more information.