To be fair, I think this is mainly aimed at developers (and ETH ecosystem developers specifically).
While I don't disagree that there's a "vocabulary" problem (e.g. "dank-sharding"), in a perfect world, a normie would largely just interact with an application without needing to know any of this.
Spot on: This underlying infrastructure isn't meant for "regular people", it's meant for the people who directly build atop it. By way of example from TradFi, the news updates from SWIFT about ISO-20022 is similarly laden with jargon:
You say that from the standpoint of readers at this HN blog page, but this blog post is the top blog post and first one seen on https://blog.ethereum.org/. Many people who want to understand what they are looking at prior to purchase would look at this page and quickly close it, never to invest using etherium.
Do you download binary utilities for execution, when every page on the website (or app store) is filled with made-up jargon? That's the issue that I see here.
Ethereum.org is owned by the Ethereum Foundation (hence the EF in the url) which exists to support the ecosystem from a technical and business perspective, not convince users to use Ethereum or invest in it.
Members of the Ethereum Foundation have been critical of Ethereum and called out overzealousness in the past, warning that the price might not be rational.
There's countless examples of niche jargon on the front page of HN every day. Sometimes it has to do with Rust, or Zig, or Protobuf, or an obscure file spec. Today the jargon happens to be about blockchain consensus engineering.
While I don't disagree that there's a "vocabulary" problem (e.g. "dank-sharding"), in a perfect world, a normie would largely just interact with an application without needing to know any of this.