I've added another link under Cautionary Tales titled "Recovering from World of Warcraft" here's a snippet from it:
"I’ve always intellectually known about the time sink concept. I’ve always understood the grinding. Each new MMO has a honeymoon period where you ignore this. New scenery, new places to explore, new characters to get skills with. It doesn’t get repetitive for awhile. And WoW’s rich quest system, at least initially, made the game seem more like Final Fantasy than it did Everquest. But there is a finite limit to this. You run out of quests. You cap out. And like any curve approaching infinity, you get to a point where you work and work for minimal improvement. But work you do, because everyone else is, and you want to stay ahead. You get so caught up in it you don’t stop to realize how crazy everyone is. And the sole sane person surrounded by crazy people is the one who looks crazy."
Here's a link by the same person on time sinks. Written over a year ago its like looking back in time yet having the same experiences as now.
Poisonous game monetization
4 hours ago