I'm actually teaching a course in Cryptography right now that touches blockchain a bit. And I asked this question with a practical purpose to know if there are any warnings I should give my students about practical implications of the technology.
> elaborate on what specifically?
> plenty of academics talking about blockchain = bad
Elaborate of what is "bad" specifically, and suggest any specific trustworthy academics who made any statements like that.
From a non-academic perspective, the trouble is there are few or no real-world problems for which such a thing is the best solution (judged by logistical practicality, performance, or ethics).