Additionally, I started a new character almost immediately after the server went live. I was level 1 and the highest characters was this guys' at level 15. He was already 4 levels above the next highest.
As I logged on and off, I followed his progress with the who command searching levels 15-80, 25-80, and 45-80 as his toons got higher. I've never seen anyone do that on any MMO.
Furthermore, I don't recall ever seeing him in a dungeon zone. At 58-62 he was always in Hellfire Peninsula.