Lana Polansky (of Flushed):
And while Nguyen made a fair bit of money off Flappy Bird, one of the most refreshing things about playing the game was that it was uncluttered. In simply playing the game, sure, I saw banner ads—discreetly and unobtrusively at the top of the screen—but never once was I asked to buy anything.
This whole thing almost passed me by. I got Flappy Bird shortly before the author took it down, and I found it oddly charming. I had no idea the BS the author was subjected to.