I think those who talk bad about cryptocurrency are either ignorant or traders. There are thousands of people in the world who are not related to cryptocurrency in any way. They basically start spreading bad words about crypto after hearing the name of cryptocurrency from someone else and hearing about its disadvantages. As a result, many ordinary people start saying the same thing. Which happened to me too. If I had not joined the forum, my misconception would never have changed.
Majority of people who criticize crypto are either ignorant or people who are filled with regrets of not using their opportunities rightly when they had it to buy at a cheaper amount. There are tons of bitcoin critist who are now massive bitcoin holders with FOMO any potential time they have now to accumulate more. So no matter how much people criticize bitcoin, at the end they'll all come to a conclusion that is not what they taught it was. Bitcoin is not a shit project that we should expert a serious dip of crash
It is too late for criticising bitcoin to make it fail even when bitcoin was very tender this has no effect on bitcoin. Those that are criticising bitcoin are ignorant and it's just a matter of time they will know they have been ignorant for a longtime. Bitcoin investors will keep on accumulating more bitcoin and make good profit from their investment in the future. No amount of criticism can change bitcoin, instead all criticism will surely ends in regret.