Having an innocent looking (writeable) folder that gets reset on every login is really a trap for user data loss. A few ways that could be changed:
Remove write permission to this folder. Just executing notebooks shouldn't require write permission and if some tutorials do, have them write to other folders. Alternatively, force users to copy the tutorial folder to execute some of the notebooks.
Have a button that resets the tutorial folder instead of doing it automatically. Warn loudly that this will delete all data in the folder.
Having an innocent looking (writeable) folder that gets reset on every login is really a trap for user data loss. A few ways that could be changed: