Why is the churn quite so high on the America Online Inc service? Well it seems the company has signed all the easy prospects and is having to use an ever more scatter-gun approach to find more, and according to the PC Week gossip column, which also points out that the company has been sending out access software disks with the user ID and password clearly shown on the mailer, so that anyone can note the details and later use the account if it ever gets set up. The access disks wrapped in cellophane are being handed out with the snacks on Midway Airlines passenger flights.