Earlier in this thread it was observed that a couple flying B6 from PWM to JFK to connect to an overseas longhaul had only themselves to blame when the B6 leg was badly delayed, blowing up their connection. They had allowed themselves about a four-hour layover. Given the historical data, what do you think would have been a prudent connection window? Six hours? 12? 24? Should people in that situation not fly JetBlue at all?

You seem to be saying that it is silly to plan for the worst case scenario when flying JetBlue... but when a customer takes the timetable at face value and things go wrong, it's his or her own fault. Perhaps the truth is somewhere in the middle. I no longer book B6 when I have to be at my destination within 24 hours of schedule. But if that is silly, what margin is not silly? At what point are irrops the airline's fault?