I generally agree with TheRealWVMan here because i) the number of possible house rules is effectively limitless and ii) ratings will no longer reflect the game proper if this is allowed for rated games. There are also other options available (TTS) if the goal is total control over how you choose to play a game.
However, I think our own discussion is likely moot because as I understand it BGA's license terms usually state that BGA will follow official game rules: http://en.doc.boardgamearena.com/images ... Pub_en.pdf
. I don't know where to find the license terms for specific games so I'm not 100% sure this applies to Quantum, but if you do intend to add this option, please make sure that it is okay to do so before releasing it.