It seems weird that deletion is prohibited. As we grow as people, sometimes we no longer want to associate something with ourselves. A photo we don't want to remember, for instance. This feels like an unnecessary restriction.
If there are no references to the GUID of the item, you could easily simply consider it deleted. There would be no practical way to find it, after all. There is no "list all" or anything like that (as I understand it). You can't say 'Show me how much of the 128 bit space I've filled' and then iterate through each piece..
I don't think it's prohibited, see linked issues below. I have been keeping an eye on the project and that feature for several years. I am using zfs snapshots locally and borg backup for now. It is not comparable but does the job for now.
