My guess is, based on his stated recent discovery that the engine VIN does not match the car he bought, he got conned when he bought it and is reluctant to face the truth.
Other than that I have no idea why he persists and why he gets so angry at those that are really just trying to help him figure things out.
This is a Quote from his topic on the Camaro Forum.
"Given my Vin Numbers and engine codes did not match, the previous owner sold it to us here in the USA.
I now have a larger headache and I was aware something like this would happen and never doubted the guy. Yeesh I don't know what's worse, getting smacked by my wife with the papers we purchased or getting called a Lamo by a few here...."