I was thinking about this a lot. I used to think that most HN users are very smart, but the crypto discussions here are extremely dumb full of misconceptions and hatred. For example yesterday there was an article upvoted and vehemently discussed here, but anyone having a basic understanding of crypto would know that the article was total garbage (and full of hatred). It was like someone with primary-school mathematics knowledge hating on mathematicians and wanting to reform modern mathematics with his 'idea'.
I think it has to do with a misconception about how much effort you have to put in to have a good understanding on crypto. If we are speaking about topics like high mathematics, most people realise that their knowledge is not enough to have a meaningful opinion on the cutting-edge. For some reason people on HN treat crypto like politics: almost everyone has a strong opinion without much knowledge. Crypto is a much deeper subject than how it is treated on HN. You need to have not just technical knowledge (like understanding why a proof-of-stake algorithm has no vulnerability is VERY hard), but also very deep knowledge of the philosophy of value/money/trust. For example any substantial interview with Vitalik Buterin discusses the topics in a much deeper way than it is treated on HN.
TL;DR: People are reasonably smart here but extremely uneducated on crypto, and for some reason they think that they are informed enough to have a strong opinion.