"What concerns me" does not make it hacker news, IMO. There are plenty of other sites where people can discuss what concerns them ad nauseam.
Edit: let me expand that a bit more. There are many things that I think are far more important than startups and hacking. Politics (in the US, Italy, the EU and worldwide), the economy (as above), the environment, child rearing, and so on and so forth. However, these tend to be "flame-bait" topics which are best left to other sites lest they overrun this one.
To clarify: by 'concerns' I meant 'is relevant to', not 'causes to worry'. IMHO, Hacker News is a site for discussing issues relevant to its readership; my point was that this article is indeed relevant, even though it's not explicitly technology-related.
If you're an inhabitant of Earth then large-scale environmental damage driven by global spending habits concerns you too. Sorry about that!