Ah, did you miss all of the advertising that the last Civ game used with the whole "Civilization Anonymous" groups? There was a batch of pseudo-jokey Gamer-Addicts and how their lives were ruined because of the amazing gameplay and addiction levels of playing it..
Mixed in stereotypes of the geek gamer, the gamer girl, the soccer mom, the business dad, all of whom had been driven to distraction due to extreme addiction levels to a single computer game..
So they actually took the fact that the Civ games are well known for a certain level of "addictiveness" and made that a key point to the marketing campaign..
And positing that since there's Alcoholics Anonymous, Gamblers Anonymous, that there should be some form of "Gamers Anonymous" for group support..
Oh, you mean civilization the game