Do they reveal "novel" tricks they didn't create? It's one thing to reveal standards like the cups and ball, but another entirely different to spoil a recent t

Do they reveal "novel" tricks they didn't create? It's one thing to reveal standards like the cups and ball, but another entirely different to spoil a recent trick a living magician is still making money off. I don't think they do the latter. The balls and cups with transparent cups is still amazing, by the way.