Billionaire Elon Musk is well-known for his frequent posting on social media, including the X platform which he acquired for $44 billion in 2022. Musk is not allowed to post certain items on social media as part of a settlement made six years ago. What Happened: On Monday, the U.S. Supreme Court rejected an appeal from Musk to remove a provision related to a 2018 settlement with the Securities and Exchange Commission (SEC). Musk and Tesla Inc (NASDAQ:TSLA) each agreed to pay $20 million as part