I don't think anyone has been proven right or wrong. Even Jez says the data is basically inconclusive one way or the other.
I agree with the intent of GINO's thread here. If someone comes out saying "Mine is screen used!", then he or she should expect to be called out on it. Are we supposed to blindly accept these things as holy writ because someone says so? I mean GINO's pieces have had some pretty good pics taken to back up his claims, especially when he offered up those three trooper helmets.
On the other hand though, if the guy is not offering to sell this piece...and let's hope he is true to his word...then this argument is a non-starter. I think GINO is bringing it to the radar because the guy HAS sold his pieces before.
How many times have people been duped into buying so called "screen used" pieces? If I were offering what I thought was a screen used piece, I would post some side by side comparisons and state why I thought so and so was screen used.