Exploiting :
1. The act of utilizing something for any purpose. In this case, exploit is a synonym for use.
2. The act of utilizing something in an unjust, cruel or selfish manner for one's own advantage.
I used exploit with its second meaning, and in that case it means cheating. Sorry if it wasn't clear enough. I would have used "used" if I meant just using the game mechanics.
EDIT :
Defining cheating as "not using the game mechanics" is wrong in my opinion. Because a bug often is a game mechanic that can currently be used.
