Flappy Bird was a catchy game for Apple and Android users which has been pulled down by its creator, Dong Nguyen. It seems that the game took off only recently racking up 50k USD per Day ( see Flappy Bird numbers) from advertising. The game had some fake reviews at first but only recently, in Jan 2014, it had received more reviews and people started playing this game.
I checked a trailer of this game: way too annoying for me, that is sure, but it is addictive and a very hard to play game. In any case, many guys liked this game. that’s why you see that much publicity and ebay opportunists.
Above is a parody made by Slacktory.