Carbonite's warehouse is a marvel, given that it tracks almost everything. What is missing is syncing with other Carbonite users, let alone other addons, that take a snapshot of the guild bank.
Therefore, I humbly suggest
LibGuildBankComm-1.0 to take the snapshot and sync with other members of the same guild. The API is easy and straightforward. Further, Thaoky, author of Altoholic, is considering using the lib, as are other authors. It would be wonderful if all such addons were on the same page, as it were.
I do realize that Carbonite currently does not use LibStub and CallbackHandler, but I am hoping this wouldn't break the bank. See what I did there? *a-hem*
Anyway, just a thought.