I'm glad someone said it. This apenwarr seems to have some good karma here on HN, but IMO a lot of what he says is heavily misinformed and biased.
I had the urge to go point-by-point of his post and refute each with proper references and practical examples, but I then I realized that he is just a troll and that would be feeding him.
Some of his points, like about IPv6 addresses being too long and hard to memorize and that NAT is good/enough for users, basically points that he probably doesn't have much experience with network management and how IP works (specially IPv6 networks). This is strange coming from someone who was the original author of wvdial.
I have already argued here on HN why IPv6 addresses are easier to memorize: http://news.ycombinator.com/item?id=1804038