TMT analysis: The court allowed a libel claim by two individuals who had been called ‘paedophiles’ on Twitter, supposedly as a rhetorical flourish, and dismissed the defendant’s counterclaim that he had been libelled, first, when called a ‘racist’. All had a national profile and, unknown to the defendant, the claimants’ reputations were particularly vulnerable. The case confirms that, even in respect of grave allegations, claimants will fail to meet the serious harm threshold unless they can prove the real-world impact of the allegations and isolate the harm caused by the specific words complained of, as distinct from other potential sources of reputational harm. The court also held that reply-to-attack privilege is not a ‘licence to defame’. Written by Harry Eccles-Williams, managing associate, and Agatha Hunt, trainee solicitor, at Mishcon de Reya LLP.