On Thu, 11 May 1995, John Kohl wrote:

> In my 10 years of using UNIX or UNIX-like systems, every time root has
> unlinked a directory it has been accidental or inadvertent, and resulted
> in much gnashing of teeth and pulling of hair.  I have _never_ had
> occasion to intentionally unlink a directory with unlink(2).

In my 9 years of the same, I've found it necessary to use this "feature" 
exactly twice.  I'm not sure what I could have done without it on those 
systems.  It's not been a problem for me under any of the *BSD variants, 
however.

--scott