While that might be true, I don't see why you need to be such a vigilente. We've always had bubbles and euphorias. Markets, be they Nasdaq or Bitcoin, have never cared about voice of reason but have always thrived on speculation. So why bother? The financial tide will ebb and flow whether you like it or not. Even after Bitcoin, there will be other speculations as well. It will never stop. That's just part of human nature.
Edit: That's not to diminish others' belief in the validity of Bitcoin. I think there's a real problem in our economy, especially with the Fiat.