I'm testing this plugin for how its responsiveness

I'm testing this plugin for how its responsiveness to browser width (for mobile devices), and it looks broken. The sidebar and main content (Q&A) appear overlapped, and Q&A looks like it's hard-coded to be a specific width.

I had set the width settings in Q&A Settings, so I'm thinking this is related, but this is not a responsive design.

Did I do something wrong? If not, when will this be corrected, and is there anything I can do in the meantime?