The author should exercise caution in disclosing how he "gamed" the green card. If the authorities think that he did all this for the sole purpose of getting the green card, they can take legal action against him.
The intended takeaway of this article was that there was never any "gaming" being done. The major open source contributions and the related accomplishments are legitimate and noteworthy in their field — as indicated by the projects' broad adoption across the web and the organic press coverage. The post is intended as a walkthrough on how to efficiently think about qualification. And how important the Internet is to that.
As it should be. Those taking advantage of a system are harming those who are trying to work within such a system according to it's rules.
Exactly. It is in the author's best interest to take down that post and post it again once he gains citizenship.