Dahlke built a decay-and-promotion scoring system for Eris (a local Rust agent with Markdown vault memory) to gate which staged notes get persisted: three tiers with thresholds, background daemon ticking every two minutes to decay scores and advance notes up the ladder. The honest diagnosis: the system measures string-overlap against note slugs, not actual importance; he never built the "curation mode" (agent walking its own memory by score) that would have justified the machinery; and simpler mechanisms already existed—explicit commit flags, semantic ranking at read time, TTL expiry. He overengineered before validating the signal. The practical takeaway for practitioners: if you're adding write-time gates on importance, verify someone (human or model) will actually read the signals. If not, you're adding config debt and calling it neuroscience. He keeps it anyway because deletion is less fun than building SQLite features, which is a fair camp about hobby software.