I double check the scenario in version 3.2, you are right 3.2 has same behavior as 3.3: Collaborator cannot do "Move To" or "Delete Folders" to folders that other people create. Hmm.. I thought "Collaborator" can have all write permissions to its site? I thought the only action that Collaborator cannot do are Invite or Manage Members and delete a site. Is there such role where user can have all "write" permissions to folders or documents inside the site but not the Site Membership features?