Our detectives are back with the following intel on this WordPress site
The site is using the Loopia (Twenty Twelve) theme by the WordPress team (Loopia: Tård Wennerborg) .
We could identify 4 plugins (there might be more) - bbPress , Enlighter – Customizable Syntax Highlighter , ht-knowledge-base and Responsive Lightbox by dFactory
The 2012 theme for WordPress is a fully responsive theme that looks great on any device. Features include a front page template with its own widgets, an optional display font, styling for post formats on both index and single views, and an optional no-sidebar page template. Make it yours with a custom menu, header image, and background.