User blog comment:Sannse/Your First Look at the New Wikia/@comment-761251-20100827011305

Sometimes users make really wide tables; and sometimes I &lt;pre> source code that also gets wide (though on community central, the pre tag is set to autoscroll and not overflow).

With monobook and monaco, they overflow off the right side of the screen; there's alot of white space there, I can use my horizontal scrollbar to get there. With Oasis, the sidebar might obscure part of the content; part of the content might obscure the sidebar; or they might obscure each other; or the sidebar might be pushed far far out.

That is why it is a bad idea to have a right sidebar on a wiki that everyone can edit.