Possible HN bug here. This URL was posted 3 times[1]. Aren't reposts normally marked automatically as duplicates?
[1] https://hn.algolia.com/?query=Windows%20NT%20for%20GameCube%...
[1] https://hn.algolia.com/?query=Windows%20NT%20for%20GameCube%...
In the case of split lottery, someone emails hn@ycombinator.com and one setq [or update statement] later the threads get merged