Well, it would be silly to call it 'flawed' in any case, lol. It was/is a game and the only flaw it could possibly have would be "this is not fun." Nobody has ever accused D&D of that (well, maybe they have, but you cannot please everyone). It was really a pretty mind-bending concept. Even at age 11 I was a wargamer. I 'got' games, but when I just HEARD THE IDEA of D&D it was like learning that you are really a Martian, nothing I ever assumed about games in my young life could really be applied anymore.