Well some people do. The article I read was on Super Paper Mario. And I don't like the whole "blame the user" kind of argument. Technically an article about a game should have that warning just for the sole purpose that not everyone knows how this wiki does with it's articles. Heck I didn't know when I read it, I just figured it was about the game's premise, not it's storyline. Then again I see how that could be used against spoiler tags. But meh, it wasn't enough to totally ruin anything for me so I'm ok with it.