Let's go back in time to late 2005. I had just blindly bought the DVD to High Tension. I loved that movie. It was nearly perfect. The only thing that kept it from being perfect was the twist ending. Basically, I felt the twist was unnecessary. Sometimes it's okay to have an overly simple script. Bad guy comes, fucks things up, you kill him in the end. There isn't anything fancy about that, but that's part of it's charm. It doesn't try too hard.
Now, that was nearly seven years ago. Since then, we've had Shrooms, Secret Window, Perfect Stranger, The Number 23, Madhouse and probably several others that I'm forgetting. That's not even counting movies like Identity and Hide and Seek that came out before late 2005. We see this same fucking ending so often that it's no longer fresh, creative or shocking. It's flat out boring and it can ruin a good movie. Why does everything need to have a twist ending? Despite his success, there's a reason why people mock M. Night Shyamalan these days. Doing twists in every movie is a joke. Sometimes, the primitive and overly simply conclusion is perfect.
Take the movie Ils for example. That's a movie that didn't have a twist ending (Okay, so it did, but the victims weren't the killers, so whatever). That movie is so great because they spent the entire time building up the suspense and it had a natural conclusions. Sometimes in life, bad guys just exist. Michael Myers was not a split personality of Laurie Strodes. He was just a psycho who went on a killing spree. STOP ADDING THIS STUPID TWIST!