I tried playing Dragonica Online a while back, which is apparently pretty similar. The really goofy game design (not the art direction...I mean the weird combination of 2D and 3D that was just sort of hard to comprehend) was what turned me off.
MapleStory doesn't work on my Mac. I have to buy a program just so I would be able to play. Most of my asian buddies (lol) play MapleStory though. One of them was bragging about going up 32 levels in one day. Not sure if that is an amazing thing though.
Not according to one of my friends, friend. He likes to brag about hacking into games. I don't think he has been caught yet. I am waiting for the one day he comes to school crying because he was banned from 20 different games at the same time. I am so mean :D