well since that particular plot-point you're bitching about is... eight years old, i think whinging about it is pretty daft. that's like whining if i tell you Soylent Green is people or Bruce Willis is dead in Sixth Sense or something.
Just because something is old and you think everyone should know all about it, not using the spoiler code is a bad idea. What if I didn't know about your spoilers? You'd have spoiled things for me. Especially
Sixth Sense as that is the one thing that if you know in advance, the entire movie is ruined. So please, just use spoiler codes and be done with it.