Playing amateur detective here, but "A huge thank you to the community!" blurb was added to the repo on March 20th [0], just before the hockey stick inflection point on the 21st where they got exactly 1800 more stars... then exactly 1000 more the next day, 1000 more after that, then 900... etc. [1] The only point where we see the first sig digit be NOT zero is today. Maybe there's some truncation that github does on their end for the API, but it being exactly +1000 a couple days in a row is indicative.

Wow. I thought the github clout market would be a bit more subtle about it.

[0] https://github.com/Lum1104/Understand-Anything/commit/9866fc...

[1] https://www.star-history.com/lum1104/understand-anything#his...