Hi jacob,
Congratulations on your pmp !.
I don't know if you are right or wrong on the fact that the exam was harder because you have a master degree or if it was easier on the third attempt.
However on a pure business point of view, practice this kind of things would be disastrous for their reputation !!!.
I mean if you build a business with a reputation that makes your institute so famous around the world why would you take so much risk ?
let's assume that someone worked inside PMI and they did practice what you mentioned, go public with such info their reputation would be ruined

.
Even if you say that this someone have contract to not disclose any information, we all know that build a reputation/trust takes lots of time, break it is only a matter of "minutes".
It would not be a smart career move for us aspirant to take the exam as there is a huge risk that the value of the certification could greatly decrease ! even for PMP's.
"do as i say, not as i do", i do believe that "fairness" part of the code of ethics would not have been followed !
There is many reason for me choosing this certification, one of them was this code of ethics, i hope that companies looking for PMP are not only looking for knowledge but also are driven by this code. Even if as Cornelius said in his videos it's not always easy to achieve it, but we strive to !
Cheers and congratulation again on your PMP.
Noreddine.