5000 stars. That's an interesting threshold. I've checked and astropy -- the main python module used by pretty much every python user in astrophysics has 5100 stars. I would guess almost no open source code in science would pass the threshold.

EDIT: Just another test, one of the most used codes in astro -- an ensemble Markov-Chain Monte-Carlo sampler https://github.com/dfm/emcee has 1600 stars. It just shows the 5000 stars is a bit PR, rather than a serious attempt to help open source.