Browse User Shares - Folders have date added

There are users who share a lot of files, like idk 50123 files shared. Lets say that user adds 20 new files in a new folder and then he would obviously have 50143 files. NOW, the tricky part is what exactly that user added. You don't know unless you ask him. Okey some users have folders with month and year name so its easy with them. It might be useful to implement some kind of date added or some kind of filter that would filter the newly added shares. Probably too hard, you decide. Comment please and happy holidays.