That said, with threads like this, there's also value in letting people come forward with their experiences (positive or otherwise) to see if there's any sort of pattern; any such patterns can then inform future interactions with the people or companies involved.
My own personal experience over the last year as a manager of managers that may be relevant to both pc and barmstrong: seeing a surprising number of security resumes on the market from current Stripe talent suggests there may be a bit of impending brain drain (for reasons I can't put a finger on as I'm not inside). I've seen less of this with Coinbase talent.