the post you linked to. It should have been abundantly obvious that I didn't ask what PFF was, even to somebody with your intellectual challenges, but what I really said was that it's behind a pay wall so I can't independently review and evaluate the claim. So I linked to the PER and QBR ratings that are publicly available to demonstrate the considerable gap in their evaluation to the purported PFF evaluation and asked how one might account for the disparity.
I'm guessing you won't understand any of this any better this time around, but that's on you. I'm not here to solve all of your emotional issues. Now go back to your LARPing of fictitious roman generals.