Gave a non-exhaustive search, but didn’t find this request:
I find myself using index cards like post-its quite often – just a note in the title. Then later, I waste a lot of time click-checking them to see if I wrote additional notes. Another user lost track of his notes because he put them in the synopsis instead of the text window.
Would it be non-non-trivial 
to have the binder indicate whether a binder item has synopsis data or text?
Maybe it could it be as simple as making the icon have three states:
Perhaps there’s a need for a fourth icon for pages that also contain synopses, and a paperclip to add to folders to indicate they have synopsis data.
Looking forward to your thoughts.