I was just re-watching some of the old episodes before 63 came out, and I saw that a lot of people were referring to Kage Bunshin as a Forbidden Technique. Yet Naruto uses it all the time and no one gets pissy. The only other forbidden techniques I can think of were the ones where the user had a chance of dying, such as the Gate Technique Rock Lee uses. But Kage Bunshin doesn't seem to hurt Naruto at all. Any thoughts?