--no-preserve-root is a security option to keep you from accidentally removing all your files. Make sure you always use it along side the -f option and -r which stands for rescue - meaning rm will create a rescue copy of the deleted data.
this post was submitted on 09 Aug 2023
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It means No! Preserve Root.
Mozilla recently tried to integrate some AI stuff into its MDN. The corresponding Github issue is correctly titled "MDN can now automatically lie to people seeking technical information".
¯\_(ツ)_/¯
Don't forget -r for when you -really want to delete that file
Use --no-preserve-root if you want to keep a backup of the file offsite in Norway.
No! Preserve root!