We've added two new organization settings to help manage users:

1) Allow users to add themselves to the organization (API Only):
This setting allows a user to add themselves to an existing organization via the org_user PUT api call using a session security token. It is useful for custom applications that allow users to signup for specific organizations.

2) Auto-create user folders:
This setting will automatically create a secured folder for each user that joins an organization.

An example of a folder for a user named Bing Bong: