In 2012 Tom Hermans talked about Responsive Web Design at WordCampNL, a methodology about which he was very convinced at the time, and meanwhile the rest of the world too.
This year he wanted to take the acronym a step further and gave it a slightly different meaning, Responsible Web Design (or Rant on Web Design). With that definition he wants to step away from the purely technical side of things, but focus more on UX, design and content and how they fit together from a user- and frontend-perspective.