Should Google incorporate 'Ad quality' metrics into YouTube videos?

Focus on evaluating the potential benefits and drawbacks of incorporating 'Ad quality' metrics into YouTube videos. Consider how this could enhance user experience by improving ad relevance and engagement, and how it might affect advertiser satisfaction and retention. Analyze the implications for pricing strategies, particularly how ad relevance could justify premium pricing for higher-quality ads. Be prepared to discuss potential challenges in measuring ad quality and the impact on YouTube's existing ad ecosystem. Use data or case studies to support your arguments, and think about how this change could align with Google's broader goals.