I have looked around on youtube and if you every look up youtube changes or youtube sucks and or anything simliar to the sort you seem to find a lot of people complaining about all the changes youtube has made and how youtube is censoring videos and keeping videos from getting views and deleting or suspending Youtube channels without notification to the user that is being accused for something. Take this guy for example...http://www.youtube.com/watch?v=JxlqVM-zt3o
As with almost every other website/online service. You give up your "freedom of speech(Even though not everyone is American", you agree to abid by their rules(laws) they can remove your enough account or ban it at anytime.
"Freedon of speech" is always pretty relative, I think, and it's interpreted within the context of other prevalent laws anyway (and on Utube I suppose Utube's own rules are "prevalent laws"). Try exercising your "freedom of speech" to incite racial hatred or civil rebellion and see where it get you!