While bid price is important, relevance likely plays a major role in determining which ads earn impressions and engagement. Understanding how PopAds measures factors such as user interest, ad quality, click-through potential, and audience matching would reveal why certain campaigns outperform others. Tracking changes in this score over time could help advertisers optimize creatives, targeting, and landing pages more effectively. It would also provide insight into whether performance issues stem from low bids or weak relevance.