you are retarded and cannot not install extension malware

Gimme a break dude. Are you doing a code review of every extension you install? What about every time it updates? Do you even know when they update? Are you 100% confident that no malware author in the entire world is smarter than you on any given day?

I'm willing to bet that you've never run a software project of any kind, let alone one with a public add-on system. I have, and let me tell you - you need a remote kill list. Without one your project just becomes a middleman for criminals.