Murky security model for domain validation aside, how does that ensure the honesty of the uploaded package?
(So much of supply chain security is people combining these two things, when we want both as separate properties: I both want to know a package's identity, and I want to know that I should trust it. Knowing that I downloaded a package from `literallysatan.com` without that I should trust `literallysatan.com` isn't good enough!)