The EXP Curve

Because that great achievement now is lost. Everyone's able to get to 192, so there's no achievement in it.

It's not lost at all, he still made at there. If you're doing things just to be better than other people you've got some serious problems. An achievement should be about personal gratification, and in knowing that you made it that far under those conditions should be more than enough for anyone. It shouldn't be about making you feel like you're better than anyone else, 'cause you're not. Especially in a case like Maple Story where it's entirely dependent on the time you're willing to give and not your level of skill.