It looks like the blogger, the guy who posted the link (1 hour ago) and all the 8 commenters are based in the same town.(I also know that many of them know each other) Most of the commenters have karmas less than 25 and it is probably not unreasonable to assume that most of the 29 upvotes came from people who know these 8 commenters.
Nothing wrong with any of this, and no offense intended, but I often see posts asking how posts get to the front page. Well, for all of you, here is one example of how posts can get to the front page.