You want to stop subjects from changing from what they are intended to be? ie. Talking about nintendo on a playstation topic ... THEN STOP MAKING EFFING THREADS ABOUT THEM! Its that simple! The more you talk about it, the more it will spread!
A sony vs Nintendo Argument? Cool! I beleive that sony and Nintendo are both very good. In my opinion, 1. sony 2. close second nintenod 3. way last Mircosoft. I prefer sony because it has a wider array of games appealing to all players, while nintendo is more for younger people.