why do people hack?

i think there are two areas of hacking
1. singleplayer
2. multiplayer

1. i think single-player hacking is ok, i for example usually do it after i beat the game at least once, either as a stress release for the difficulty, or being entertained to see how the game slowly breaks down over time
2.
multiplayer is a lot more annoying because it affects other people, i think people who hack in multiplayer have really competitive brains, but don't have the skills to match, so instead of learning the game and getting better, they take the "easy route" and hack. if anyone here does hack multiplayer i advise you not to as it really takes away from the experience.