The world of technology is constantly undergoing change and so are the approaches and methods of SEO.
YouTube is a great Platform to play on, but you can be a newcomer though. And many newcomers do not have the idea of what things might cause their video to downgrade.
The system of lending money on interest basis has been in practice since centuries. Earlier their used to be no proper procedure or any solid record and thus the money lenders imposed as much interest rates as they could