I accept your devil's advocacy, but I would argue that the app should have simply asked permission before doing these things, especially installing itself as a

I accept your devil's advocacy, but I would argue that the app should have simply asked permission before doing these things, especially installing itself as a startup item and adding a Finder favorite. Also, if the app is going to install things as an administrator, it should tell the user exactly what it plans to do. Just my $0.02. I know that Keybase the company is not shady, but their chat app sure feels off to me.