It seems like Matt is generally not a fan of online communities. In reality hacker news has not changed a whole lot in the last couple years and as far as I know is still one of the few sites with a large community and a strong bias towards intellectualism and knowledge sharing.
Matt points out that HN and other voting related sites have flaws. Frankly, thats my assumption when I use any tool, or for that matter interact with any group of people through any medium. I'm a little surprised that the author is just now reaching his threshold for the flaws in the system - he points out no new problems.
The important question is not, "what's wrong", as much as "what's better?". This post would have been much more valuable as a discussion of feasible, implementable alternatives to the observed problems rather than a post about the author's choice on how to spend his own time.