I think it was already discussed in this thread that it was not Nutaku's decision. Nutaku managed to keep the game going for 1 more year when devs wanted to close it a long time ago. So unless you call the thing that they game a game an extra chance a dumb decision you are blaming Nutaku for nothing. But I don't see a difference, if they would have closed the game a year ago they would have suffered from similar cash charge backs too.