I am aware of Mobile version of Nabble.
I was wondering if it can be made more friendly by removing last posts and number of replies in the mobile version only.
Thereby user can see only questions so it be more spacious.
That was for changing another thing.
Please, try to set your css, probably understand how your site is treating mobile layout, in a way to make it comfortable on your device.
Other forums can be viewed well.
You site http://www.divajournals.com deals with mobile in a way that "crash" Nabble's style.
You could see how it works and try to find a way to make Nabble shows wider. The reply button can't be seem because the forum has been compressed to fit inside the mobile version of your site.