Also technical hurdles for such usage would be audio likely be forced to start muted, viewership may not be counted for that channel, and if it’s seen as an attempt to try to inflate viewership they may outright disable embeds on the site.
As for the legal side of things, You may not transmit embeddable experiences to or through any ad network or other advertising-related service. is a prohibited use according to the Embeddable Experiences section of the Dev Agreement