I'd expect them to propose a scenario that could be tested either with software or a miniature. You're under no obligation to but examples are persuasive. Feynman's ice water demonstration convinced far more people than his well-reasoned appendix.

I'm attempting to give those who believe that JS crypto should never be used a way to make a clear public demonstration. What better target could you ask for? A web application hacked together in a few hours by someone with no training in computer security who isn't even a professional software engineer and who is willing to arrange scenarios favorable to the attacker.

I'm not aggrieved by the negative reaction. I have no skin in this game. I don't earn anything if people walk away believing this idea is more secure. I just wish you wouldn't keep repeating the same canard about having to bootstrap the crypto on every use while attacking the messenger and the manner in which the message is being delivered.