This means that if the game is a bit sparse in some category, or goes big in others, the player can still calibrate that stuff. The flipside of that is, of course, that the players are doing all of that work, so if you're not into it, it might feel heavy. Personally I am a fan of this aspect of RPGs

So I was having a great time spinning out fiction from the bits and pieces that my character sheet provided, and the GM was very generous in letting the rest of us put stuff into the world, which is an ideal dynamic in my opinion.