My favouite quote

“Whereas it used to be that ‘creative’ or ‘well-made’ videos could get a ‘huge amount of [Youtube] views’, she says, now it was the videos that are sensationalist’ or represent the ‘lowest common denominator’ get a lot of views, providing what the ‘mainstream media’ was
providing before the emergence of YouTube, and that the people who make up the ‘core’ of YouTube were ‘running away’ from the mainstream media to avoid.”

(Jean Burgess, Joshua Green, “Agency and Controversy in the YouTube Community” Internet Research 9.0: Rethinking Community, Rethinking Place, Copenhagen, 15-18 October, 2008, http://eprints.qut.edu.au/15383/1/15383.pdf)

It is really a good point! We aware that the hit videos of the day are sensational ones like the sexual behaviour of a young couple in the street. It is not something creative or worthy. The ideal thinking of creating Youtube maybe twisted in this way, it now has no difference with the "mainstream media". However, we may say anything runs a risk in a long term process, so it is a problem of how to keep the image more long-lasting.