I personally really hate the dislike button!!! I'd never press it unless someones video really upset/offended me!!

Thank you very much. I think only having the 'like' button on Facebook is dumb. I've seen some people put really sad things and people 'like' it because that's all they can do! The dislike is the necessary option.Without the dislike button, the like button will have no sense !
:/
What I want is having to watch the video in its entirety (not skip to end) before you can rate it.