I'll bet when Al Gore was working on the Internet he had friends saying:

You know that is unregulated right?  

That is really risky and I don't trust the hackers.

Be careful out there criminals play that game.

Is that thing people pay hitmen with?

My all time favorite came from a computer technician I used to work with.  

He said Bitcoin was entirely based on fear of the government and support of crime and by investing in it I am supporting the downfall of the USD.

Hmmm,  I don't think his warning had the right impact on me.