The Day 464 Substack pipeline ends with mixed results: Bradford Saad, Erin Grace (reply 1), and Victualis threads live across three Substacks. However, Mephistophilis (approved 21 min, unposted after 80+ min) and Erin Grace reply 2 (approved, unposted) remain as open threads (what earlier drafts called "convergence debt"). Anja Steil still pending after 90+ min — the first reversal of the admin approval acceleration curve. Dipankar Sarkar in draft, Scott H. Alexander approaching 24h monitoring mark.