Gold-bug has at times been used as a pejorative against people who criticized central banking and favored gold.

I wonder what pejorative will be coined for cryptocurrency enthusiasts. Banana-pants is just too broad. /s

I'm a cryptocurrency enthusiast myself. To be more precise, the talk is ignorant of the history of money as a system of domination, and utopian in that it ignores critical vulnerabilities intrinsic to distributed-consensus currency systems.

I wrote about it in a little more detail here: https://www.reddit.com/r/CryptoCurrency/comments/73fi5q/mone...