NetJets have a confidentiality clause in their contracts, which is a compelling reason not to divulge ongoing contractual offers in a public forum to people outside the company. It's even more compelling since some people know the real names behind some of the Pprune IDs.
I have not read the offers, but a few insiders have shared a few details. Perhaps the reason people are defensive is because they are loyal to NetJets and don't want to air the company smalls in public. You don't have to like their stance, but it is their choice to withhold. If curiosity is killing you, next time you meet one of their pilots in a bar, buy the drinks, lots of drinks!
There is a
PR side to this as well. Why would you bite the hand that you hope will keep feeding you and possibly contribute to an already worsening sales trend?