First we saw a lot of anti-BTC posts: PoW criticism, usefulness criticism, transactionality criticism and energy use criticism.

Then, we got new technology as ETH, that improved on usefulness, now the criticism was about transactionality, "silliness" of use cases, etc.

Then, we got uses like Compound, Aave, Golem, etc. And the criticism about energy use and transactionality.

Then we got PoS and L2s like Polygon, Lightning, etc... and additional criticism came in

Then we got low-fee or no-fee solutions (XLM, NANO), and Web3 is the next criticism.

I've learned to ignore the destructive criticism in HackerNews. I understand that it has "grown" to be what SlashDot was in my hayday (late 1990s and early 2000): Suddenly all those "young and innovative" dudes that grew up using Walkmans, DiscMans, Commodores, BSDs, Linux PCs, Usenet and HTTP, became too old to understand iPods, Web2, and SaaS. The same thing is happening to people in this news.ycombinator forum: Blockchain technology is disrupting a lot of our preconceived notions (I'm 40... i've gone 3 times through this), and a lot of people are just finding it hard to understand.