It would be useful if Administrators had the ability to set folders to be excluded from Search results by default. For example, if a folder is used for historical archive purposes it might not be relevant for the majority of searches, but inclusion in search results will make it harder to find what the user is actually looking for. It would also be useful if users could do this for their own accounts as well.

One possible method of implementation is to add a Tag called "Archive" (or something similar) to folders that Users and/or Admins can set to exclude the folder from search results.

During searching, a prompt could be displayed with the option "See matches in Archive folders" to allow users to reinclude those excluded folders when necessary.