As you have noticed that we now have a new simple but beautiful skin for our wiki. The new skin is called bootstrapskin and it's brought us by the bootstrapskin team from uk. Lee and his team is really doing great work for the mediawiki skins. I found their skin by google "best mediawiki skin" and then someone recommends it on Quora. When i see the bootstrapskin website(of course it's mediawiki). It's exactly what i was looking for.