I don't think Youtube is his main gig, but he's doing it to make money, otherwise his videos would present more like Engineering Explained and be far less sensational. He knows how to work the algorithm, and that's good on him, it makes producing the content worthwhile, getting paid for it. As I said, nobody is going to endlessly do this stuff for free or at their expense, which is why I'm not running API or Euro sequences on stuff here for the benefit of the board, it's not really financially tenable.
We are very lucky (as is Lake) to have access to Dave at HPL and his willingness to use his lab to do stuff not only for Lake but for the oil community in general. His testing of M1 FS 0W-40 a while back now really put some weight behind what a lot of us were saying at the time, which was that the oil (SN at the time) was probably the best OTS oil going. He had it tested and it was the best performing OTS product they had tested, surprising them. You can search for his quotes on that on the forum if you like.