There are many clever minds here and I have followed by far the most witty discussions on various topics on this platform. Whenever the topic of cryptocurrencies comes up, substantial concerns are expressed about the technology and its added value for society and the financial system.
At the same time, I don't get the sense that this is unfounded reluctance. Rather, fundamental questions reveal themselves upon closer examination. And the participants in the discussion are in best of company. Many smart people have expressed concerns about crypto currencies in the past (e.g. Bjarne Stroustrup or Waren Buffet to name a few).
I have the feeling that the vast majority of cryptocurrency advocates have no idea about the matter themselves. They are simply spreading slogans on Reddit and Twitter proclaiming the next big hype. I think that's one of the reasons why you can find so little neutral and highly qualitative information on the subject - there is none.