Vitalik Buterin supports copyleft licensing in response to the growing adoption of open-source code by major companies like Google and Huawei and rising competition in crypto

Quotes that support claims

Companies like Google, Microsoft and Huawei are embracing open source, and even building major software packages open. New industries, including AI and of course crypto, are heavier on open source than previous industries ever were.

According to Buterin, his latest stance has been shaped by the mainstream adoption of open-source code by companies like Google and Huawei, as well as the increasingly competitive cryptocurrency landscape.