There's negativity because you're making some pretty incredible claims, and you need to back them up with more than just "well you haven't tested it yet". If you're claiming that you can prevent government actors like the NSA from accessing the webcam and microphone without knowing the password, then you're in possession of some pretty serious crypto and you should be willing to talk about it. Tell people what you've done and why it works, instead of asking them to break it before they judge it.