"What would you describe as "Addictive" about PlaneShift?"
Nothing really. But my stupid sense of responsibility keeps me checking in cause I feel I can't let my guildies down. Silly, but that's it. When I was in no guild, I didn't spend much time in the game. So it can't be addicitve. It's just another way to waste your spare time if you want to give your mind a break from rl. My 2 cents...
Edit: To make it clear - I don't think of guilds and the other players as addictive. I could live very well without it [heck I'm a pretty anti-social person, no clue what drove me into a guild], if it wasn't for the bad conscience I get if I don't show up every couple of days. Similar to skipping school or not going to work. It's silly and has nothing to do with addiction. Just a bloody stupid sense of responsibility misaimed at something that should be done just for fun.
... goes back into hiding and closes the door to keep the world out