I love overthinking things!

It's true that if every card had a title, then import and export while maintaining the tree structure would be easy.

But as it stands, if you have the following cards:

    A  A.1
       A.2
    B

this approach wouldn't be able to maintain the structure if the cards didn't have titles (it would just list all these as A, A.1, A.2, B).

It's for this reason alone that we've considered making titles required for at least the first card in a group.

Or am I overthinking again... ?