Whats wrong with figuring something out. Not like youve never done it haha
Well, as you've already illustrated better than I can, alot of the time you don't learn it correctly.
Secondly, I think that at this point, almost everything magic related that I know is somewhere on my bookshelf (all of which was obtained legitimately), or had been shown to me by the person who created it, with very few exceptions.
Like I said before, there's alot of gray area when people show things to eachother at a convention or gathering, but just blatantly trying to "figure stuff out" from an internet video is stupid.
Even if I DID do something like that, I sure as hell wouldn't just throw it up on youtube.