Gameplay is a term most commonly used to used to rate, or score the quality of the experience had by gamer while playing a particular game. The term gameplay is often found in game reviews where a score is given based on player experiences during the interaction with game.
My interaction with the game =/= YOUR interaction with the game. Get it through your head. The way you play WoW, and the way I play WoW... wait for it...
Are two entirely different, personally subjective, ways