Youtube-served ad revenue is a pittance compared to in-video sponsorships. Every time the served ads piss someone off enough to not continue watching (and there

Youtube-served ad revenue is a pittance compared to in-video sponsorships. Every time the served ads piss someone off enough to not continue watching (and therefore deny the video a recorded "view") it probably costs the creator more than they would get from the slightly increased revenue of more aggressive ads across dozens of viewers.