From what I understood is that he contacted CS in order to get it, not from a loot. ie, he figured out how to get the item but he needed CS in order to do it. So he lied to them about something and that led him to the crystal.
Whether they gave him the crystal or another item, it was a CS exploit and not an in-game one.
I heard that as well, but i believe that wasn't officially confirmed either. And it doesn't fit with Reids statement. Even the average player can try to fool the CS, but the average players don't force push each other to places that aren't intended to be reached. But like i said, it is indeed just speculation on my part, i'm far from having any proof. To be honest, i'm just as clueless as the rest of us, maybe i'm even more puzzled due to the many different statements we get from various members of the CS.