Tesla Inc (NASDAQ:TSLA) CEO Elon Musk is not joining Twitter Inc (NYSE:TWTR)’s board of directors after acquiring a 9% stake in the company for $2.9 billion. Amid the purchase, some employees were concerned about the platform’s content moderation given Musk’s free-speech advocacy. “For The Best”Q4 2021 hedge fund letters, conferences and more In the note to employees, Agrawal said, “The Board and I had many discussions about Elon joining the board, and with Elon directly. We were excited to collaborate and clear about the risks.” “We also believed that having Elon as a fiduciary of the company…