Earlier quoted context omitted.
This is actually something that Bjarne Stroustrup addressed when talking about C++: There are only two kinds of languages: the ones people complain about and the ones nobody uses. In the case of cryptocurrencies, as soon as a cryptocurrency has any important percentage of use, these transactions are not confirmed in seconds anymore, and transaction fees starts to grow up. No one is really using PoS right now, so let'…
I remember Stroustrup also saying how much he detested Bitcoin in his keynote from a few years ago, where he says it uses as much power as Switzerland and was saddened to know it had been written in C++.
I use C++ everyday and I am still shocked about how user-hostile it is. I don't buy the usual "backwards compatible" and zero-cost abstraction canned arguments. I identified a lot of missed opportunities for simplification... I wonder how much energy we wasted by trial and error while writing/compiling useless C++ programs /s