evidence: EU takes action against Elon Musk's X over disinformation [...] However, concerns about the nature of the content appearing on X have intensified since it was bought by Elon Musk - in part because he laid off many of its moderators - with the European Commission previously warning it had the biggest disinformation problem of any major platform. In the US, controversy over extremist material appearing on the site has led to an advertising boycott, a bitter row between Mr Musk and a campaign group, and even questions about whether X could end up going bankrupt.