There is no entity that would pay anywhere near that amount of money for this. This is useless to black hats, and of course no legitimate service could pay to exploit this flaw. The last remotely plausible actor is like, various espionage agencies but good luck with that one.
I suspect the NSA would be able to keep much better tabs on people if they know exactly what they're watching on Youtube all the time, and $100,000 would be a pittance to them. I assume they already have access to this, but other espionage agencies may not.
