[rch]

If you're working with more than a couple of people it can be worth running an audit on your code, including the libraries you're using. Even if the libraries themselves have permissive licenses, they may inadvertently include bits of SO code.

[kube-system]

know of any good tools to help identify those instances?

[rch]

Sorry no, only that it was done by a third party prior to a funding round.