'We could go down a very dark hole if we go down that path again,' he said. 'Incitement to violence against a minority group, like we saw with the Rohingya when the platforms did not take down hate speech and abuse, is a very real danger,' Robertson, deputy director for Asia, told the Thomson Reuters Foundation. But rolling back such curbs on hate speech would put vulnerable people at risk, said Phil Robertson of advocacy group Human Rights Watch. Musk has called himself a free speech absolutist and criticised Twitter's policy of moderating content. Elon Musk's plan to acquire Twitter has alarmed human rights activists in Asia and the Middle East, where social media platforms have been accused of inciting violence.