In Burning Crusade, he was the hardcore, racing to level 70, eschewing sleep and sustenance to get those server firsts, eventually causing him to burn out and quit the game for a time. In Wrath of the Lich King, he's been a casual wanderer, enjoying leveling slowly, surrounded by the other hoi polloi and "journeyman adventurers" taking the game at a slower pace. In the end, though, what pleases him most is that the friendships.
The article is a nice little testimonial of the way this game has shaped our lives and forged and strengthened friendships, and it's certainly a nice read on a cold Saturday afternoon like today, whether you're casual or hardcore. After all, we're all just players.