Is min/maxing a flaw of a game, or the players?

[Aerozord]

This is abit of a philosophical question I was thinking over. So min/maxing the act of allocating points to maximize your advantage while limiting your weaknesses. Now most will agree its bad, it leads to stock stereotypical characters, balance issues, and can even break the game.

But who do you really blame for it?

On the one hand its logical for a player to try and be the best he can be, and hard to resist the temptation. If a game is properly balanced it should be hard to do this, or atleast to a game breaking degree

On the other, developers cannot be expected to make a flawless game. Not to mention the game might be "balanced" more from a story perspective then a mechanic one. With exploits never being an issue if the players show some restraint and just make a character.

So again I ask, who should you be more upset at. The player for twinking his character to hell and back, or the game for allowing it in the first place.