Years ago predatory reservations were actually a serious issue. That was because there were a lot of people who were mainly in the business of renting DVC rooms. At the time, a single owner was limited to 5,000 points but joined with anyone else, the number could double, and if you formed a little businmess gang with four of five owners, you could have 25,000 points. Added to that was the abscence of any transfer limit. An owner could have transfered in as many points via as many transactions as he could find. In addition, a person in the business of renting could arrange with as many owners as he could find to be an associate member, who could thus make reservations using that other member's points.
The result is that the professional renters began using all the points they could muster (far more than they owned) to engage in predatory reservations by reserving right at 11 months out a high number of high in demand rooms for key, high demand times of the year (such as Christmas), and then advertised for fairly high prices the rental of those rooms in those high demand times. The result is that many owners found it impossible to book rooms they wanted for those times of year. The final result was that Disney did take action to greatly limit the power of professional renters. It changed the transfer rule to allowing only one transfer per year and then limited the ability of any member to be an associate member to a maximum of four accounts. It also adopted a rule stating that any member who tried to make more than 20 reservations in any 12-month period could not make the 21st reservation unless he established that all the reservations he had made were not rentals.
Those restrictions put a lot of the professional renters out of business. They did not do away with professional renting entirely but greatly contained the activity. There are likely some predatory reservations still being made at 11 months by those who are doing nothing but renting rooms. However, the problem is nothing like it ever was before, and the remedy suggested is something that would preclude not just the small amount of professional renters from renting, but preclude all owners from being able to change the names on their reservation after they have reserved a room, which can happen for a lot of reasons, including that the member becomes ill or the member later discovers he cannot go, and sends his children or friends instead. Personally, I think enough was done before to contain the problem that existed and it would not be advisable to create a rule that prohibits changing the names on a reservation, which would do far more harm than good.