It would seem that Musk already spends a fair amount of his spare time using Twitter, for free. One might attribute no small amount of Tesla's stock price as well as his child with Grimes to it. Even with a diminishing amount of time to dedicate to running Twitter as a business, Musk is one of the most effective Twitter users of all time and clearly understands the platform on an intuitive level, which bodes well for any critical interventions he might make on it.