On the other hand, SV ecosystem is crippled with "fake it until we make it" mentality, and people doing PR stunts just to raise money and have fun while the illusion stands.

I do agree Elon has proved numerous time he isn't this type of guy, but we've seen failed projects, vaporwares and even crooked CEOs so often that you really can't blame the community for having a higher than normal level of skepticism.