Thanks for the comment and kind words! That's what I was saying at the end of the article:
The irony is that it's not always the one you worked on the hardest either. Sometimes it's just that short and very inspired post at just the right time that does the trick.
While there is something a bit "counter-intuitive" about it, reward-wise the goal is really to maximize your average payout per post. So, instead of thinking in terms of a single post being "fairly rewarded", perhaps it's better to think in terms of the best way to fairly reward all your posts, overall!
That helps to put it more in perspective and why it is worth doing.