AuthZ: Use case for write-only access (i.e. ¨user = w¨)?

Maybe someone could tell me a use-case for write-only subversion AuthZ
access?

For instance, in the case where a user ¨user¨ may read a whole tree,
i.e.

[/]
user = r

and write to a specific part of a tree, i.e.

[/foo]
user = w

using both directives with the current code behaves as if

[/foo]
user = rw

was specified.

On the other hand, a statement like

[/]
user = w

IMHO does not make any sense, at least not in a typical SVN environment
- it looks a lot like the UNIX ¨+w-rx¨ directory permissions which are
teh suck at times, when you have to explain users why they cannot access
their files anymore.

Maybe I am missing something, but the web admin GUI I have been writing
for some time currently simply ignores the

user = w

entries because I cannot think of a intuitive GUI and of a use-case for
this construct, and it would help me a lot of

user = w

would always be treated as

user = rw

which does not seem to be the case.

-- 
Christian Neumair <chris@gnome-de.org>
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