Get over yourself, I care a lot about respecting the magic community and the creators but it's generally accepted that it's ok for basic cuts to be taught on Youtube, they go so far back that it's hard to really credit anybody for them. I'm fairly sure the Sybil (or at least a very similar concept) goes back further than Chirs Kenner in TOOC. Even some of the most respected flourishers (Kevin Ho) have free tutorials on Youtube, it's very common for newcomers to flourishing to be referred to Youtube before moving on to DVD's.
The Sybil is taught by Brian Tudor (and many others) on his DVD's even though he didn't create it (he doesn't credit it to anybody), he has no more right to teach it than anybody on Youtube, why aren't you complaining about him?
To be honest you sound idiotic getting so worked up about something like this, I'm certainly opposed to magic tutorials on Youtube but for old, basic cuts that are difficult to credit fully to anybody it just doesn't matter in my opinion.
It would be absurd to expect everybody to buy TOOC (which is quite expensive and was out of print for quite some time) to learn a basic, widely available flourish, i'm almost certain that 95% of people didn't learn the Sybil from TOOC and the ones that did only did so because they already owned it.