Actually, there have been problem-free macbooks since its release. The problems only affected some of the macbooks, while others were fine. I'm glad you got a great product, but just because yours is fine isn't really a basis for claiming that Apple has fixed all of the problems and everyone's purchase will be as good as yours.
This is good news, though. I also hope Apple has fixed the problems with the macbook. It seems that we are recieving less complaints on the board, which is also a good sign. 🙂