This person is a great shooter, he hangs out with Mas, he teaches pistol shooting and sells guns to the public. Oh. I'm sorry. I missed the part about the private conversation and posting on a very public TFL. Sillly me. For those still wondering what the definition of what, 'is', is, let me assure you that, while I've never been acused of being, The Sharpest Knife in the Draw, I do know the definition of the word, 'all'.
I'm really not sure why you seem so angry about this. I simply relayed a comment a very experienced coworker made to me. If you go back and read my original post, I say very explicitly that I asked him whether he prefers the 9mm, .40, or .45 and that was his answer.