The original article is one giant PNG file (i.e. no actual plain text), so perhaps Google's bots don't see much content on the site. It's rather amazing that the site owners do this and yet claim to be mystified by Google's actions -- really?
The site seems to be pretty high-profile, and I seriously doubt they are "mystified." Looks to me like they're trying to drum up support and/or attention, and this post making it to #1 of HN indicates that their strategy may be working.
