the purpose is precision, not being a jerk.
I contest that loophole exploitation and leaving room for doubt and interpretation is equivalent to being a jerk.
In real life? Legal and factual uncertainty favors the unjust (particularly those with power in the current status quo who desire more power). And even institutional players who would want to be unjust make game-theoretic decisions about whether they prefer cost certainty or greater upside (and variability).
But in RPG environment? It depends a far bit on whether the goals of the other players are Gamist, Narrationist, or Simulationist. Playing the munchkin in an Narrationist environment has significant jerk potential.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.