As others have answered already, the answer is because of tabs which have always looked like this e-|-----------------3---------|-----------------3---------|b-|--------3-----3-----3-----|--------3-----3-----3-----|g-|-----0-----0-----------0--|-----0-----0-----------0--|d-|----------------------------|---------------------------|a-|----------------------------|---------------------------|E-|--3------------------------|--1------------------------|Now imagine reading stuff like this for years and then suddenly you turn on RS and it displays it in the reverse format. All those notes flying at you and my brain has to work harder to try and not read it how I had been used to. After 2 minutes of playing, I instantly searched for a way to switch it. In my eyes, the Rocksmith's default is very odd as most tabs wouldn't be displayed that way. If anyone who only learned guitar from RS decided to venture out into the world of tabs, they would experience the same confusion.