[yakult]

Quite a dangerous tool.

What happens if I copypaste some random text into the file and press save, by mistake? Are there mechanisms to limit the damage?

Also, when I remove a hash and save, the file is gone permanently, even if I paste it elsewhere, right?

[userbinator]

No more "dangerous" than any other file manager, because that's what it was designed to do.

[ObscureScience]

I think that's what the demo showed, a deleted file is put into roamer's trash directory. So when a file is deleted (or moved), the hash points to the new location, the trash in this case.