On the other hand you have the crypto diehards screaming HODL and telling everyone that it'll never go down. I've lost count of the number of times I've been in a discussion with people pointing out it's a ponzi scheme only for some crypto enthusiast to come in and defend tooth and nail how it'll never go down and it's going to the moon eventually. You've got big personalities like Craig Grant, dollar vigilante and John McAfee telling everyone it'll go to insane heights and advertising/selling this stuff.

As to "stupidity" the bottom line is no one knows everything. The best doctor in the world might not be very financially sophisticated. I don't think letting 70% of our population die off because they aren't financially well educated and listened to people that claimed to be is really good for society either.

It always sounds like a good idea to get rid of the "useless" part of society and then the top tier "led full, rich and happy lives until they were all suddenly wiped out by a virulent disease contracted from a dirty telephone". ;)