Forum Moderators: phranque
I would argue it is a service they provide you to not delete all your data if your account is closed. I mean what if you needed to retrieve some of the data after the fact. I would hate to find it was deleted in that circumstance.
But I would venture a guess that this is all specific to the place where you had the account and how efficient their sys admin is and how much clean up he does of his own and how long it takes him to do it. It may even be the policy of the place to delete the data right away, but that doesn't mean the guy who's job it is to do that is 'on the ball'
Most (hopefully) complete daily backups, which means they have a copy of your website files on another server, tape drive, or other storage device.
If you FTP to your site, remove all of your files, then cancel your hosting account, they still have a copy of your website in their backups.
Depending on how they store, categorize, and overwrite backups, determines whether you still have a directory with your name on it somewhere.