You're also diverting from the point to argue that Signal is worse than Keybase for server trust. Releasing server-side code comes from the open-source philosophy that Keybase claims to be a part of on its website. Several people in that Github issue would like to self-host Keybase servers - open source is all about that kind of accessibility. No one's making the claim that publishing the code would make them trust Keybase more, though Signal arguably has benefited from releasing its code for public audit. What would be the cost of publishing your server-side code?