Deletion of Junction Points

I have written a little shell extension which is a drag&drop handler and
will add menu items to create hard links and junction points (if anyone
is interested, can be found here: http://elsdoerfer.net/en.php?pid=ntfslink)

My problem now is the following: Several users reported, that if they
delete a junction from explorer, all files in the original folder will
be deleted as well. Now, I searched a bit and found this:
http://support.microsoft.com/?kbid=205524, where it says:

"Never delete a junction point by using Explorer, a del /s command, or
other file system utilities that walk recursively into directory trees.
These utilities affect the target directory and all subdirectories."

Well, ok. The thing is just: On *my* machine (WinXP Pro, SP1) this does
not happen: I create a junction, delete it from explorer, it is gone,
but the target directory is still untouched.

Any explanation for that?