Comment 17 for bug 175503

That sounds too complicated to me. IMHO it's just a bug of mount/ntfs-3g, because it treats the unclean shutdown as an error while windows (that's the OS which is using NTFS, so they probably know best) ignores it completely.

If it would only be a warning, shell user will see it (and probably think "Do I care? Tell me something interesting!") and nautilus user will never see any message (and probably also don't want to see one).