if your video contail illegal meter or copyright issue
Copyright issues are a big deal with Youtube now and they will actively pursue anything related to taking another person's work for your own. Even sampling clips is sometimes not allowed. Though I have seen mash up videos that include copyright clips along with original work that are still allowed to stay up. So maybe that is considered an original and unique work of art separate from the original copyright holder.
hmmm. nice statement from beverly. besides that youtube has become liberal a little allowing differnt kinds of videos to be uploaded but they are still very watchful to block out those illegal ones.