Musk may be forced to buy Twitter. It all depends on how the contract is worded and what court has jurisdiction.
No, regardless of the court, he has an out option that will cost him a billion dollars.
He has that kind of money, but I very very seriously doubt he has any intent of giving it to Twitter.
They did not provide the information on the fake or troll accounts. There is no question it is higher than 5%. A more realistic number would be 20-25%. I’ve been on Twitter since Jun 2009. I know what a den of snakes it is.