Well, you _could_ make it do a "tar", but what's the point? That really
doesn't add any value as far as user space is concerned.
Think of it this way: if the directory and the "default stream" associated
with it aren't independent, then user space already has the information,
and the stream is pointless. In fact, the stream is _worse_ than
pointless, because it hides the fact that there is no independent
information.
See my point?
Linus