There are almost countless titles of software that have been high quality without analytics, so "nearly impossible" is way off. However, I can see how analytics can be highly valuable, especially for a single dev, or a small team. In another stance, it's only valuable if they know how to interpret the data correctly. Just having data doesn't mean the person looking at it is going to come to the right conclusion about what the user is trying to accomplish, or why. This means that it's probably best to continue to communicate with users, and/or ask them about behaviors observed through the analytics. In regards to Nostr-space and privacy concerns, those people need to wake up and realize that Nostr has nothing to do with privacy. I don't know who started that rumor, or why it persists, but the protocol ignores that aspect of UX. Nostr is quite the opposite. Nostr currently is a very public cryptographically confirmed identity with redundant and uncontrolled usage of the data one broadcasts.