(author here) That's fair. The real world applications are slim, but interesting. Maybe I'm a whistleblower with thousands of files, but I don't want to release them all right now. This tool allows you to easily prove that a file you release later was part of the original collection.

Another use case might be an organization that has a large archive of important files. This tool allows them to efficiently sign all of these files by signing the root hash.

Edit: added this to the README