Field note 03 · Affinity and lapse
Cohort: paying patrons 12 / 18
Takeaway scratched from the ledger

Patrons do not leave; they stop leaving marks.

The cancellation notice arrives late; the blank margin begins six weeks earlier.

Weekly mark rate before patron lapse Share of patrons still leaving comments, saves, or pledges in each week before cancellation. 80% 60% 40% 20% 0 74% 67% 49% 26% 11% −8 wk −6 wk −4 wk −2 wk cancel wk six-week quieting appears before the exit −63 pts from first quiet week to cancellation week