Other people quit jobs they hated, got worse jobs. Quit those, perhaps worse or perhaps better. But eventually they found a job they liked. And they stayed there.
Except that plenty of people never find a job they like. They're stuck working at Burger King or some menial office admin job, and they hate it. They are, in general, not hanging out on HN or blogging about their amazing experiences wheeling and dealing their MBA cred. Hence the bias.
And, in anticipation of the standard reply on this, we cannot assume such people don't also have MBAs or PhDs in Social sciences. The cards just don't fall right every time. To paraphrase another HN discussionf from a few days back, a series of fortunate accidents allow certain people to become wildly (or at least comfortably) successful. The same chain of accidents, playing out differently for others, draw them in the other direction.
If there is a second, standard reply to this idea, it usually has to do with inherited ability (or innate talent) versus disease. So we should also explicitly not assume the people I'm describing have any such disabilities. Those would be additional forces, but plently of able, coherent people never nail a full-on life-hack, in the long-term.
Other people quit jobs they hated, got worse jobs. Quit those, perhaps worse or perhaps better. But eventually they found a job they liked. And they stayed there.
Good for him. It's a good story.