I don't like to cheat, it feels distasteful to me. I like to play fair, even if I get my can kicked into orbit as a result. The one time I tried something like that was the infinite item glitch in Gen I. I sorely regretted it. Destroyed the game completely (figuratively and literally), so I never tapped into something like that again (don't ask how that glitch wrecked my game, all I know is it did, and rendered my Blue version completely useless).
So, no, I don't cheat. I'd rather earn what I've gained in a game, not taken any shortcuts or the easy way. I will willingly spend many hours in any given game (RPGs in particular) searching for all I can at the time, discovering all the secrets I can find, and yet play with fairness. Even in a simple card game I won't pull a fast one to get an edge. I may like to win, but I like it when I win the right way. So cheating is out of the question for me.