Followers can then pay to see these exclusive posts, with a subscription to Elon Musk's account costing £3.96 per month. Twitter has been grappling with new innovative ways to make money since Musk bought the company for US$44bn in October. However, markdowns of investors' stakes in the business last month suggested Twitter's value has continually plummeted since the deal was signed, mainly as advertisers have fled over relaxed content moderation on the site.