Well, someone can just datamine to find the answer, completely skipping the search for clues and connecting the dots.
The interview with the creators of the Binding of Isaac comes to mind, I don’t blame them for being angry at all, honestly. It would be frustrating to spend who knows how long planning out a puzzle just to have somebody find the answer by cheating and then just spreading the answer to everyone.
I don’t have a problem with revealing in-game secrets as long as one person legitimately found the secret. If you discover something weird that nobody’s ever seen before in a video game, it only makes sense that you would want to share it. The problem comes when you datamine in order to find the secret. I believe doing that is a bit disrespectful to the creators of the game.