If it's complete "folder structure" tree data with names removed, that could potentially be matched against public repositories that contain the same folders, l

If it's complete "folder structure" tree data with names removed, that could potentially be matched against public repositories that contain the same folders, like posted Zip files, GitHub projects or university web space, to identify some of the users. From there, you could potentially identify other tools those people are using or embarrassing folder structures (e.g., deep folder tree structures people used to use to primitively conceal porn and other secret files, or signature folder structures for embarrassing repositories like erotica archives, collections of extremist literature, or piracy tools). Hopefully they'll release more info and some sample files (like for themselves).