I am using twentythirteen. I notice that Q&A supports

I am using twentythirteen. I notice that Q&A supports twentyeleven, twentyten & twentytwelve out of the box. However, after switching Q&A on, I get this:

http://askrabbitaboutenglish.com/questions/ask/

Should I disable the CSS for Q&A? I don't get why it is not rendering in the main content section...

Any plans to include twentythirteen by default with Q&A?