This nofollow thing is somewhat controversial to me. I am actually ranking on the 3rd page of Google (US) (22 to be exact) with just 2 backlinks from wikipedia. (en and id), even with this new google update.
It is a homepage, with only probably around 80 words on it, accompanying with about 20 newest post with brief context.
Keyword is 301k searches a month, difficulty is 78 according to kwfinder.
My site is already 2 years old.
Im guessing wiki links, even though its nofollow, Google really does give you a big trust factor for it, or Im just lucky