The game has a few problems itself in my eyes, but largely what the problem with some people is that they don't have the willpower to quit something they enjoy, even though it's causing damage elsewhere.

I'll be quitting before this semester starts, and depending upon how I'm doing, I may renew if I can control it. I honestly just need more discipline and willpower in regards to my gaming.

As K_A said, MMOs are fantastic fun if you have the time to dedicate to them, but if you don't, you're just in for a world of hurt.