He most likely has no life and he defines his value through his accomplishments in this game. He channels his lack of real life success here. He pads his nonexistent ego adding a kill after another, but look what happens when he loses even here..
If someone has a healthy life outside of AH (the one that matters anything) he won't be uptight with this game. Because he couldn't care less.
Priorities.
This game can get you addicted much in a same way as Irc. On irc though, the warfare was real, shooting down people by means of denial of service or hacking. It was and is stupid and destructive.