According to Odaily, Ethereum co-founder Vitalik Buterin has expressed a shift in his perspective regarding software licensing. Buterin, who has long supported permissive licenses to maximize the adoption and dissemination of his work, now finds himself increasingly interested in Copyleft. He believes that permissive licenses facilitate development without concerns, aligning with his philosophical stance against traditional copyright.

However, Buterin's views have evolved as open source becomes mainstream, with major companies like Google, Microsoft, and Huawei embracing it. He notes that the competitive nature of the cryptocurrency sector has intensified, prompting a reevaluation of licensing strategies. Copyleft, which contrasts with traditional copyright, requires derivative works to remain open and shared under the same licensing terms, ensuring continued openness and collaboration in development.