That doesn't ruin a good game. It might spoil a plot-based game. It doesn't ruin a game where you creatively interact with mechanisms and rules, because all a cheat does is push some of those mechanisms and rules aside, so that you skip interacting with the substantial part of the game.

Writing English in the AI era is like going for an hour-long walk in the park, when previously it took you 15 minutes via a crowded subway, where you were stabbed in the neck by a raging lunatic while a nearby passenger blasted Coldplay at 100 dB.