I really enjoyed this article, thanks for sharing!
It's a shame that OP didn't add a tracker to the pirate plea button. I would wager that he made practically zero sales from it - looking at how well donations seem to work in software development in general. I think that this is why microtransactions work well. They give away a nerfed version of the game for free, and after the player formed an attachment to it, the game can be upgraded for a price. In a way, this is a much more human design, than forking up the entire cost in advance.
It's a shame that OP didn't add a tracker to the pirate plea button. I would wager that he made practically zero sales from it - looking at how well donations seem to work in software development in general. I think that this is why microtransactions work well. They give away a nerfed version of the game for free, and after the player formed an attachment to it, the game can be upgraded for a price. In a way, this is a much more human design, than forking up the entire cost in advance.