Recent actions by Microsoft, Salesforce may constitute illegal "workforce raids"
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Plus I do not think the OpenAI employees threaten to quit and go to M$ - they simply threatening to leave which is their legal right.
Worked at a company that did a CEO replacement - it did not go well - better than OpenAI but badly just the same. Their board was very naive - after OpenAI received an $80 Billion valuation most of the employees didn't really see Sam Altman leaving the building but that dream of owning a Testarossa stopped dancing in their heads.