Well, I think Denise is right because I thought I had usage I didn't get of a lockoff unit. I wasn't promised usage, but a Starwood guide said it was still there, left unused.
The eBay seller rented an exchange he requested in the former owner's II account.
I know this for a fact, because I called the reseller and asked why there was still usage, and if I could use it, and he said, "No, you don't have usage because I just exchanged into Hawaii (Westin), two weeks, and rented it to a customer of mine."
I think he was planning to use the weeks all along but hadn't yet. (He was lying when he said he used the weeks, so I would not try to take the weeks.) Then I saw one SBP home reservation in MY Starwood account, which I didn't have the right to use or cancel, when it came right down to it. I actually asked on the Starwood board (here) about the week I saw. I don't know what happened to the other half. I am sure he used it, though, because when a Starwood guide went over my account and usage for 2011, she said I had no usage for 2011.
So Denise is likely correct. The PCC's use every week they can use, when they have the ability to use it. Just look at eBay at the cheap prices for the rentals of DVC exchanges, and I guarantee those are PCC's. The expensive ones, I don't know.
Also, the previous owner of my Colorado ski week I bought in 2011 took usage of 2012. I bought it from a PCC in March, and when I went to deposit the week, the resort denied my deposit. RCI sent me an email saying my request was denied. Turned out the previous owner deposited my week as soon as he paid the PCC to take it.
I was paying the fees for 2012 and told my home resort I was paying the fees, so I get the usage. They agreed and finally the week was turned over to me, but I lost significant trading power in the process of waiting several months. I actually am still dealing with it now, because RCI says they contacted the resort, the resort says RCI isn't following through. It's still showing as a 1 in my account, and the check-in date is upcoming.