I'm just speculating here, but it might be playing nice with Windows, since Windows does have this habit of restarting at night on certain days (patch Tuesday,

I'm just speculating here, but it might be playing nice with Windows, since Windows does have this habit of restarting at night on certain days (patch Tuesday, is it?). For those who leave their computers on at all times, it would be a terrible thing indeed to lose their active pages.