I am trying to push Trello for adoption within my organisation, but there is concern from higher up about the deletion of data.Are cards logically deleted (ie setting deleted=true) or are they really deleted from the server?As I understand it boards and lists can only be archived for the time being.
What happens to my deleted Trello cards?
trello;security;delete
Cards can be archived too. This is the preferred way to handle completed cards/boards.   Archived items are hidden from board view but can still be searched for and returned from the archive if desired.When actually deleting a card the system reports There is no undo with this action.Adoption by our team members (< 20 in our case) was very quick (less than a month) once we showed them all the basics.