Ads and sponsorships are two ways that creators can earn a living, but there's additional ones; YT subscriptions, Patreon and selling merchandise comes to mind.
Anyway the sponsors won't know (unless I'm mistaken) if a viewer skipped that segment, so the creator will get paid anyway.
the sponsors will have metrics to measure the conversion rate from ad-rolls in their sponsored videos. They will pay initially, but over time, less and less as the ads become less and less effective.
Anyway the sponsors won't know (unless I'm mistaken) if a viewer skipped that segment, so the creator will get paid anyway.