Describe resolving revenue–UX metric conflict

Describe a time you led a high-stakes decision where ads revenue goals conflicted with user-experience metrics. Be specific: 1) Which exact metrics were in tension (e.g., RPM/session vs. session length, bounce, D7 retention) and their baselines/targets; 2) The concrete thresholds/guardrails you set and why; 3) How you structured the decision (stakeholders, alignment plan, decision owner, timeline); 4) The experiment/analysis you ran, including risk mitigation and what you would have done if early guardrails were breached; 5) The final decision and quantified impact over at least two time horizons; 6) One mistake you made and how you would change the process next time.