For me, one great feature of Paperpile is the ability to store a paper in multiple folders.
This is a really flexible way of categorizing and increases the chance of finding things quickly.
However, I just realized that in doing this there is a problem when using the Google Drive sync: the pdf ends up being stored (in duplicate) in each such folder.
I propose that this should be fixed so that the pdf only appears in the first listed folder.
Why: mainly it is confusing. If we annotate one of the pdfs by opening its copy on the desktop (synced from Google Drive), then there are several copies that are now different.
What happens then?
Secondly, it wastes disk space.
This might actually be a problem with google drive sync rather than specific to Paperpile,
however it would still be good to work around it in paperpile. An approach would be to treat the first listed folder as a folder, while any other folders act like labels.
This can be done currently by making labels, but that requires one to make labels that duplicate folder names (unnecessary work), and would expand the number of choices in the left-hand folder/label column – currently the UI already does not deal well with the length of this list, especially on the android app where it is quite time consuming to repeatedly scroll through it. So in other words, if the problem cannot be fixed directly, the proposal would be to have Folders automatically act as labels as well, but refrain from displaying them in the labels list.