Vitalik Buterin, Co-Founder of Ethereum, has criticized Michael Saylor's recent comments on Bitcoin self-custody. In a tweet, Buterin described Saylor's views as "batshit insane." The controversy stems from Saylor's suggestion that individuals should take full control of their Bitcoin assets, rather than using third-party exchanges or custodians. Buterin and others have expressed concerns about the potential risks and consequences of such an approach.

Source: https://decrypt.co/287881/vitalik-buterin-michael-saylors-bitcoin-self-custody-comments-are-batshit-insane