I can see that, but, that's why if you create this game, perhaps don't allow for pre-existing storylines. I agree that not finding people to fill lines or not being able to fill lines for someone and coming in alone might deter people, but... Back when fantasy RP was huge, we didn't -have- storylines. We just hopped in as an adventurer and crashed characters together to see what sort of mess they'd make: and that, was fun.