Earlier quoted context omitted.
It is also an instructive example of novelty. His initial experiment was reported very widely, and tens or hundreds of thousands lined up to "prove it could work", putting their dollars to demonstrate it. Once the novelty wore off, the viability of the approach disappeared. The opt-in payment ratios started generously, and rapidly approached zero. Little can be learned from CK's experiment because it was novel -- it…
That's an interesting theory but I'm not convinced it has a factual basis. Maybe readers decided that King's book just sucked and were waiting for it to improve? Neither you nor I can draw a meaningful conclusion on that point. What can be demonstrated, empirically, is that money can be made without imposing draconian controls.
Lots of people sell videos online without the middle man. Most see no sales.