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If you don't need some files in your personal account, there should be a way to get rid of them without deleting them from everyone's accounts who is a part of it.
Lusil
Dropbox Staff
Dropbox StaffStatus changed:
New
to Gathering Support
This idea is going to need a bit more support before we share your suggestion with our team, so, we’ve updated the status to encourage more users to back you up.
If you have any other questions or thoughts for us, just give us another shout. Thanks!