I use google adsense and webmaster tools to monitor and help with any issues on the site. I logged in and got an alert that the site was "less than ideal" for viewing on mobile devices, so I enabled "Responsive views" for the forum.
My look at it on my own device/phone after enabling this is that the text is larger and some navigation seems to be optimized for mobile viewing.
I hope this is an improvement for folks! I suspect/wonder if it is, though, for folks with older devices. (Google tells me that 43% of the traffic here is on a mobile device....if so, that kind of surprises me and blows me away). Still, I wonder if this is an improvement for everyone, the majority of folks, just a few, or not at all.
If you have feedback about this, please let us know!