I'm not speaking about a particular comment and responded to your generic assertion, "I'm amazed at the quality of posts in HN". But okay, I'll answer to your q

I'm not speaking about a particular comment and responded to your generic assertion, "I'm amazed at the quality of posts in HN". But okay, I'll answer to your question. >> git is a form of blockchain. > Does this look like a valid argument? It looks like a claim you don't agree with. I don't agree with it neither but I can see where the OP is coming from and I see no bad intent. I found their comment very reasonable and well-balanced even if I disagree. You seem to see it as an attack against Bitcoin, and you seem to be the one who is involved emotionally into this topic. By the way, notice how we were speaking about blockchains in general and not Bitcoin, you introduced Bitcoin (though I agree that Bitcoin is the elephant in the room when speaking about blockchains). > I also don't see a great reason against its energy use I intentionally and specifically did not enter this discussion by not giving any argument. This is boring, there are a lot of detailed discussions about this here on HN already.