The thing that strikes me about the question is the underlying desire to control the user. The creator wants people to figure things out rather than look them up. For a good game, make it the way you want. That's your choice. If someone solves the puzzles themselves, great! If they get stuck, or just want to blast through the game and use a wiki or guide, so what? That's their choice. As an author or creator you can choose how to make art. You do not get to control how people experience it. That would be creepy, though it doesn't seem to stop people from trying.