Well, of course. People were selling ADR's online and were sent cease and desist letters. People sell used tickets and get arrested. Tour guides abused GAC and the whole parks disability system changed. Of course Disney won't be okay with everything that is happening and consumers should ask educated questions before purchasing anything. If you don't understand what you are purchasing or can't figure out how you are getting a certain price, ask questions, read reviews, do research.
In this thread, we have been discussing agencies that have long-standing relationships with, work closely with and contract with the Disney Groups department to obtain discounted room blocks. (I used Boscov's Travel as an example) You can't get a room block without contracting with Disney Groups. And you don't just call up and ask for a contract. It's a drawn-out, negotiated process. Groups monitors how the agencies sell these rooms down to the wording used in their advertisements (the logos used, etc.) and there are certain rules in those contracts that the agencies must abide by. If they break the contracts and skirt the rules, yes, Disney will know very quickly and the agencies risk their relationship with Disney and further contracts. If agencies are offering room blocks year after year, I think you can be rest assured Disney knows all about it, is monitoring their business practices and is ok with it. Otherwise the room blocks would go away.
I am not talking about people or businesses trying to fly under Disney's radar. I'm talking about agencies who have been offering room blocks for years and work closely with Disney. Yes, I will assume that if Disney is entering into a contract with an agency year after year after year that Disney is ok with it.