Administrators automatically have all of the global permissions, and has the power to see, edit and delete every card in the system regardless of its permissions settings. See the documentation about permissions.
Accounts with the Administrator role
Add a card blahMy card on wagn.org new is where we talk about building this default content for new Wagns.......This is the account that makes any automated updates — cards created when someone signs up, link updates when renaming cards, etc.