That's one reason why I don't post. Thin skinned posters who think mistakes shouldn't be made. They are probably the ones who dreamt up the "zero defects" motto because they can't see themselves ever making a mistake.
I often haven't seen the "first posted thread" on a subject and unless something has been posted five or six times, all under the same title, I'm not likely to raise the point. I know it hogs JimRob's bandwidth if the duplicate post policy is trashed, but the occasional inability to locate a dup is not always the poster's fault. Also, sometimes two FReepers put up the same thread within minutes of each other and that isn't their fault that they were both being diligent simultaneously, when Search couldn't show them the other person at work.