My only thing about Billy is that I *want* to watch him play, yet he will never do a livestream, or release a video for the general public to watch. Frankly, I don't think he will be giving up his "secrets" if he does, and he could even just play around, and I'd find it interesting.
Other "high level" players(Masters, if you will), have already figured this stuff out. The likelihood of him "losing his notoriety" if someone else learns from him is pretty much nil minus infinity. He has been "The Man" for decades, now... and even if someone matches or beats his scores, he won't lose face.