My guess is that the poster was referring to the maker of the consoles & their country of origin. Sony is Japanese, Microsoft American. Some may believe that Sony builds their consoles with the Japanese market in mind, while Microsoft has the North American market in mind. A theory, nothing more.
Reminds me of the car industry debates i would hear a decade or so ago. Are Japanese cars better built than American cars? The answer was & remains a resounding yes. Are we seeing the same thing when it comes to gaming consoles?