I'd change "what Disney sees as wrong" to "what Disney sees as damaging."
There isn't anything 'wrong' with renting your points. I'm not even convinced speculative renting is immoral or unethical (after a lot of thought, I can call day by day at 11 months), but:
1) Rentals provide a low cost alternative to booking through Disney:
a) This means that its much harder for CRO to rent "traded" property out at good exchange rates, driving up exchange rates for all of us.
b) It also hurts Disney itself, who is now competing with members to put people in its own hotel rooms for a profit.
c) It further hurts Disney because it creates a situation where purchasing a contract is less attractive than just having the flexibility to rent points. Want CRV or the Poly or more
DVC rooms? - someone needs to be willing to buy them, and the price per point needs to adjust for inflation. Rental rates have only adjusted a little - its a GOOD DEAL to rent points - even over buying a contract if you are willing to put up with the risk. That's creating price pressure on what Disney can charge for their points.
2) Rentals put Disney in an awkward position
a) If something goes wrong with the rental, they now have a guest standing at the front desk, confirmation in hand, children gathered around excited to see Mickey, and no room because the member cancelled it three months ago. While we seldom hear of that happening here through these boards, I suspect it happens more often than we hear about it.
b) Renting guests don't always understand what they are getting - anyone remember the thread about the renter going ballistic on housekeeping because his room wasn't getting cleaned every day?
c) Members who don't rent, or rent rarely, aren't thrilled with speculative rentals, the perception of not being able to take advantage of the seven month window at BWV/BCV because other owners have rented those rooms to non-members over F&W, and, I hate to say it, some outright snobbery against "renters." This causes decreases in member satisfaction.