It's "Ethereum". You can't even write the name of the project correctly, so how can I trust you expertise on that?
>I will admit I don't understand very well what the purpose of the "blobs" are
But we're talking under a link to a post about blobs? Sounds like an important context.
>from my perspective the entire idea of blockchain technology is not useful
Instead of trying to discuss that (and I could) - on HN there are plenty links to thinks I don't consider useful, like retrocomputing, programming in AGDA or yet another rust rewrite of some tool. I don't go around and leave nonproductive comments there, i just don't click them. Why do you feel a need to do so?