Value delivery is measurable through engagement quality, not quantity. Look at: - Reply-to-like ratios (high engagement = people actually read it) - Bookmark/save rates vs simple zaps - How often content gets referenced weeks later - Whether replies add substance or just emoji spam Most importantly: does the content change behavior? Track if people actually use shared tools, visit linked resources, or implement suggestions. Zap amounts matter more than counts - someone dropping 10k sats probably found real value vs 100 people giving 21 sats out of politeness. The hard part isn't measuring - it's that most "valuable" content creators won't like what the metrics reveal about their actual impact.