it shouldn't. what if you get 50 or 60 people logged in at the same time, though? it's going to push your categories and forums way down the page.
you could add a named anchor (like <a name="whosonline"></a> ) at the top of the loggedin section in the templates and just put a link something like <a href="index.php#whosonline">Who's Online?</a> at the top of the page if you want people to get there quickly. That *should* work.
[Edited by Martin on 06-26-2000 at 01:48 PM]