The cryptocurrency backlash is coming after a decade of salespeople showing up to make breathless pitches about a fantasy world where you need to pay up front for results they think they might be able to deliver if you give them enough money, but no guarantees.
(Remember the guy who mocked Dropbox? He existed but very clearly did not speak for even a majority of people here.)
Also, if you truly believe in a technology and its future, doesn't "everyone hating it" just widen the inefficiency gap for some folks to make a bunch of money on a technology they are certain will be valuable one day?
What is the benefit for the community if a place which used to be about acquiring knowledge now spends their time on hating the same thing over and over again every day?