I don't think it's slop -- the sources are books and it doesn't read like slop -- but the sources are more worth reading. It's more like an undergrad trying to fill word count, without getting why this is interesting.
This is without a doubt slop.
https://news.ycombinator.com/user?id=jay_wevolver
Is the account that used to heavily push this domain, I'm surprised it hasn't made it to the banlist.
I feel like I learned something from this about the high level need and attributes of the schmitt trigger design. But I'm sure I'd need to read the actual my sources to realize the physical design.
However the general idea of using hysteresis for signal conditioning seems transferrable to other non physical control systems. I suspect that people who think about what the article is saying rather than reflexively declaring it to be slop could learn something useful.
It's 100% AI-generated, including nonsense illustrations. And it's just so pointless too - there are many good, better-illustrated, and better-explained human articles about the same circuit.