I wanted to add some of my thoughts on this topic. I have used Kagi exclusively for my search needs for the past three and a half years (approximately 50,000 searches in total), and the times when I have had to click More Results have been extremely rare. That is mainly why I'd like to ask: what kind of search queries have the desired result on page 2 or 3? For me, the desired result has been at the top of the first page, and I have had no reason to look further.
Additionally, since Kagi needs to remain sustainable and is already offering unlimited searches for $10/month, having infinite scrolling for search results would be an additional cost with no real upside. I am aware there are services that offer endless results, but I'd argue Kagi is not competing with said services.
To clarify, I am not simply jumping in and suggesting that anyone upvoting this suggestion is "not using Kagi correctly." Instead, I am trying to understand how other users use Kagi, and perhaps there are lessons to be learned and adjustments to be made.
