Keybase went from a command-line tool with a clear purpose to a behemoth requiring an installer, a resident daemon, and a permanent menu-bar icon. I can't even

Keybase went from a command-line tool with a clear purpose to a behemoth requiring an installer, a resident daemon, and a permanent menu-bar icon. I can't even trust a tool that is so complex (and likely has a huge attack surface). These days, I don't even know what keybase is for. What is it for, really?