It proves that people will put good money into terrible ideas if the ideas look superficially interesting and lucrative and come with the right buzz words attached. Bitcoin was designed to press the buttons of a certain techno-libertarian clientele and that seems to have worked out nicely.
As the old adage goes, in a goldrush, the people who are really making money aren’t the people who dig for gold but the people selling shovels to the people who dig for gold. For example, people are paying real money (not Bitcoin) for ASIC-based mining rigs that tend to become obsolete basically as quickly as they’re being sold. There’s now a whole cottage industry offering services around Bitcoin and related cryptocurrencies, e.g., by running cryptocurrency exchanges and so on, and as long as doing that sort of thing is profitable and there are still suckers who believe in the magic of Bitcoin it’s probably going to stick around.
