>    From: Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann)
>    Date: Tue, 6 Jun 2000 00:25:35 +0200
> 
> Hi,
> 
>    > Hm.  But these people could create two topics under Gnus, and then
>    > train them to never look at the top-level topic.  Would that work?
> 
> :-) Of course, in fact it works this way right now, but users are not happy
> with it.

I just found there is a mechanism to *hide* topic line. But it was
buggy.

Now, you may check out the latest CVS version. Evaluate

    (setcar (cddr (assoc "Gnus" gnus-topic-topology)) 'hidden)

Then, the topic line "Gnus" is hidden.  Is this what you want?

Shenghuo