"filesystem::remote" metadata to fstab or at least writable
To my knowledge if you want prevent Nautilus to thumbnailing and discover file sizes and sub-folders you need this metadata.
filesystem::remote: TRUE is only set by gvfs-* mounts. In my opinion it should also be affected by some fstab options like "x-gvfs-remote".
Now you cannot mount ordinarily anything with this metadata. It is not writable attribute!