Looking at the Recent Changes page right now, and I notice that rather than the standard red I'm used to seeing for links to non-existent pages, users without pages are showing up in a light pink color that's very hard to distinguish against the white background of the page. Did someone tweak the link colors?
Nope, it might have been a tweak in the MediaWiki code base. I'll take a look at it... Eventually... ;)
At some point, that color was defined in Mediawiki:Monobook.css (http://paragonwiki.com/wiki/MediaWiki:Monobook.css) to apply to that particular CSS class. I'm not sure why it wasn't showing before versus why it's showing now, but I removed the styling for it and the links are back to normal. (It may take a few refreshes for the stylesheet cache to clear.)
Ah. Much better. 8)
Thanks!