Which completely ignores the part where there's plenty of people who reinvent their characters just to be a part of your RP. Liking a character and a setting aren't mutually exclusive either, and pre-made characters can easily add to your RP because that has more to do with the character's actions than whether a previous incarnation existed before your interest check went up or not. Hell, even if someone goes digging through RP's just to find a game where their character can fit, that doesn't automatically their only opinion on your setting is "That'll do." Especially not if they made big changes to your character. Maybe be it's more like "Your world looks so interesting, I want to add to it by inserting something I love and am proud of." And lastly; just like there's only so many archetypes in characters, the same goes for settings and worlds.You're probably not all that different. Oh, oh, or how about rebooting an RP? That is just as lazy and a bit rude as reusing a character!

Seriously, you people and your generalisations :/