Agreed. I'm actually receptive to the idea that persistent storage is a privacy issue, but the solution is to ask the user, not delete their data after a week of inactivity. This policy actually creates a perverse incentive for PWAs to store user data on the server where privacy is even more of an issue rather than store it locally in IndexedDB/localStorage, since the local data is ephemeral. It would be akin to native mobile apps having their data removed after a week of inactivity, and them responding by storing all user data in the cloud behind a login wall.