What I really don't get is how you can become addicted to something you don't really like. I personally really really really wouldn't want to spend my free time with a game I dislike (or on the forums of a game I dislike
), but maybe that's just me.
You can come to dislike a thing after you've become addicted to it. That probably happens to most real addicts, eventually. You become habituated to the initial amount of it that you needed for the pleasure, and it takes more and more of it, to reach the same level of satisfaction. Eventually the craving can no longer be satisfied, but it still must be fed. This is addiction.
I suspect that any game that takes a long time to play through, like any RPG, has a potential for addiction. I used to play an MMORPG, and after a while it just turned into a grind ("Bring me ten weasel skulls, and I shall reward you with the Mask of Doom.") That's not play. It's work. I don't need a job when I'm playing a game.
When I start to feel like a game isn't fun, I go do something else. Sometimes I eventually go back and find it fun again (as with the Elder Scrolls games) and sometimes I don't.