What Really is SEO?
searchengineoptimizationjournal.com
searchengineoptimizationjournal.com
Judging from the submitter's previous submissions, the answer is: repeatedly post nothing but your own blog to Hacker News.
Congrats Nick, despite my flagging your spammy submissions, you finally made it to the front page with one of your useless articles.
What is Really SEO
What is SEO Really
What is SEO, really?
...And relax.