I agree with Carol.
My feelings aside on renting, if DVC wanted to slow down renting, (I don't think they ever will be able to stop it) they could very easily find "offenders" if they wanted to.
JMHO
And what would be the point of finding the "offenders"? The contract that Disney and the owner signed clearly states that renting is allowed. If Disney doesn't like it, they would have to offer to buy up all the contracts out there, and then reissue new contracts excluding the right to rent. Would you, as an owner, want your dues to cover the cost of buying up all the contracts for those who choose not to sign the new contract? The contract is legal and binding - they can't just decide to "change the rules" after the fact. They'd have quite the lawsuit on their hands. Even if Disney didn't want to go thru the expense of buying up all the old contracts and instead all the new ones from this day forward excluded the right to rent points. That would leave Disney at a serious disadvantage over other timeshare sales. It's a very competitive business. As it is they are charging a premium price for something you don't get to own, but have to give back after so many years. If you put too many rules/regulations that contradict what others timeshares are offering, they won't be in the vacation club business much longer. The bottom line is - it comes down to the bottom line.
They could, and would, find them easily and quickly...if it were important to DISNEY. The reason they don't really go after renters is NOT that renters are hard to identify. It is that Disney has no real interest in going after them.