A lot, or at least some, of the "hate" comes from the speculative, exploitative and get-rich-quick schemes, rather than the underlying technology behind it or any advancements. If you were able to separate the two, the socioeconomic and the technological aspects, I don't think the typical HN negative attitude would be as negative.
As a concrete example, if someone posts an article about Merkle tree, it would get maybe 10-50 votes and 5 comments, and probably not much hate if any. Yet (according to wikipedia, I'm not into cryptocurrencies) it's a part of the underlying technology of "the Bitcoin and Ethereum peer-to-peer networks"