Could you please expand on your "viral indie release to Youtube" idea? I am just a YT basic user and don't know what is there and what is not beyond HN, random videos, and my relatively simple use cases (e.g. music videos, and movie trailers).
I just speculate that if Blair Witch Project were made today, it would likely debut on a platform like YouTube before gaining wider recognition.
Anyway, not as big as BWP, but still a decent example of the concept under discussion, I think.