Not long ago YT had a huge diversity, but now the diversity is shrinking. My opinion is that this will drive the users away by time, because it will get boring to see one Let`s Play or some News or whatever from the same people again and again. Also the remaining YouTubers will have to create (nearly forced) content all the time which will end in absolutely senseless Videos I think. In the end YouTube can do whatever it wants, and if it wants to go to Hell - yeah - bye then :-) makes way for some fresh winds like DTube.