OP was right, the companies have to worry about the actualy consumer. A great example of this is also many games modeled after Star Wars. To be specific Star War Galaxies, an MMORPG. In this game there are way to many wookies and jedi, according to the story. However people still play it

Back in highschool I had a teacher who would literally read the paper more often then he taught class. He'd been at the school for a very long time, he had to know it would be a pain to out him.

As long as they never tried to charge for all of the user generated content that is literally given to them, I believe if they tried that a new or one of the many less-popular free video hosts would overtake youtube