I was invited to join a Dropbox team. In the end I didn't go through with joining, because I didn't want to merge my account or create a new personal account. To my surprise, after some time I received an email "Activity in Shared Folders" which listed recent activity in the team shared folder, including detailed information on who edited what files. I can't actually access the files, but I still see the names of team members and filenames.
I stress that I am not a team member, but I received notifications about what is happening inside the shared team folder.