Not sure the best answer to that. Likes are such a low-cost metric that they're easily manipulated when there's some benefit of doing so, such as a trending feed that relies on them. So far every trending feed on nostr has been lackluster. They are programmed centrally, and the result is that is certain hand picked accounts get obviously favored over others, or the likes and zaps are artificially manipulated by someone to make their own note trend. We've seen all of these problems with existing trending feeds on Nostr. The goal is better discovery of people and content/topics, and I believe it's better to approach that by giving users the power to define what criteria they value in their trending feeds. Data vending machines (DVMs) seem like a good approach to explore, but we still haven't seen much of that catching on.