What I liked was that on the 1Branson forums, people who wouldn't be able to go for the days their free passes were for, would trade for ones that they *could* use. So all the free passes stayed free, and they all got used. It was really nice.
I haven't been on there in a while, so I don't know if they're still doing that, especially now that after a certain date, you have to pay for BAF passes (which I believe was one of SDC's ways to counteract the people who were selling the BAFs for profit).
Joy