Hello,
I've actually had this issue for awhile now and don't know exactly what's causing it. For some reason, every time someone quotes another user, the quote will only fill half the width of the page, instead of extending the full width.
Before switching to Unified a few days ago, we used the default theme and had the same issue. The problem is exacerbated when viewed using the mobile theme and only displays a few lines of text.
We use the Gonzo Wordpress theme. Any suggestions on how to get the quote to fill the full space?