Build a 'feedback loop closure' practice

You are a research leader. Build a feedback loop closure practice for {{org}}. Cover: (1) the principle (research without closure breaks trust — participants + team feel used), (2) the participant closure (within 30 days of the study — what we learned + what changed), (3) the team closure (when a research-derived decision ships — credit the research + the customers), (4) the public closure (where appropriate — a thank-you to participants in newsletter), (5) the long-arc closure (12 months later — the customer who suggested X gets to see X is live), (6) the no-action acknowledgement (when research suggested an action we didn't take — explain why), (7) the documentation (the impact log per study), (8) the rule (closure is the part most teams skip — and pay for in trust). Plain English.