Reminds me of the 100 millionth OpenStreetMap changeset (commit). A few people, myself included, were casually trying for it but in the end it went to someone who wasn't trying and just busy mapping Africa! Much more wholesome, seeing it with hindsight. This person was also previously nominated for an OSM award. I guess it helps that openstreetmap doesn't really allow for creating crap, because it's all live in production, and that's how the Nth commit is way more likely to be someone's random whim? Either way, a fun achievement for Github :)
In case anyone cares to read more about the OSM milestone, the official blog entry: https://blog.openstreetmap.org/2021/02/25/100-million-edits-... My write-up of changeset activity around the event: https://www.openstreetmap.org/user/LucGommans/diary/395954