Your professor sounds useless- sorry, that's no fun :( Might not help as much on the content side of things but I find this Grammarly tool to be helpful for small improvements: https://www.grammarly.com/
We can get close to measuring culture, but I don't think we'll truly ever be able to in a way that's valuable. Some companies use eNPS (employee net promoter score) to gauge overall happiness, and it is a good high-level indicator overtime and to see when it drops and spikes. But ultimately you're measuring happiness, and with this OneVest metric, you're focusing on retention; both get at the core of whether or not culture's doing its job but that doesn't really mean it's "measuring culture". Liked the perspective though, thanks for sharing this!
Thanks for sharing this- succinct and digestible for wrapping your head around open source and why it's important that companies at any size are contributing. Are there any companies out there that you're surprised aren't more active with open source?
Good luck!