It's kind of absurdist humour. HN has been full of responses to the rather clever 2048 game lately -- 2048 in HTML5, 2048 in the smallest number of bytes, the 2048 AI solver, 2048 in Brainfuck, 2048 in Latin, etc etc etc. This is amusing to me because the subject line looked almost like one of those obnoxious Bitcoin transaction posts, thus bringing together HN's latest fad with its eternal obsession, in my mind at least.
Now, complete this sentence: 2048 on HN will jump the shark when someone posts...
The logical conclusion to this sequence is somebody making the polar opposite of this entry. Namely, a game called 2. It's a 1x1 grid, and you begin in the winning state.
Now, complete this sentence: 2048 on HN will jump the shark when someone posts...