And you take enjoyment away from this style of "playing" a game?I play games for entertainment and to experience the story/visuals, not to get killed and have to restart over and over. I'm quite happy just reading all the secrets and easy ways if it gets me through the game any faster.
I'm not Mr. Light, but I share his gameplay philosophy. I use walkthroughs on almost every game because I want to eliminate as many backtracks and false starts as possible. Knowing what to do is not the same as doing it; it was still a bear to get through parts of Metroid Prime even with the walkthrough.
I'm playing video games for fun. I like the thrill of discovering hidden pieces of a game as much as anyone, but in my estimation, that thrill does not compensate for the time investment required.