Is cutting and pasting to and from Box Drive acceptable?

Greetings,

Our company started with Box Sync years ago. During the install we made it a policy to retain/back up files from the downloads folder. Files saved to the downloads folder were backed up in Box using "SYNC". This allowed all files to be accessible, and saved us several times over the years when files went missing.

However, we were not thinking of a person's personal files being backed up in the process.  Now as we migrate to Box Drive and using the Box.com search feature we are finding files for W2's, files for resumes and several additional legal items which the user never knew were saved to box.com.  The users would like them removed, so I am searching for the safest/easiest way to do so.

Having users work with the helpdesk to delete multiple files at a time is not a viable solution, so my suggestions to the user were:

1. Download the files from box.com and then delete the files in Box.com.  (Unfortunately this has to be done one file by one file at a time.)
2. Cut the files directly from Box Drive and Paste them into a non Box Drive folder. 
3. Move the files to a AUTO DELETE folder in Box.com and the folder will be deleted after waiting out the retention policy.

Does anyone see any issues with these steps? 

Any other suggestions would be helpful?

Thank you!