Brianna Laugher:
How is it that a link to Special:Emailuser appears
in the toolbox for pages in the user namespace if you are logged in,
but the link doesn't appear if you are logged out?
you can't use it if you're logged out, so the useless link isn't shown.
Why doesn't the same happen for Special:Upload?
it does. the upload link doesn't show to logged out users.
- river.