There's this constant cultural tendency among embedded engineers to "one-down" other people's designs.
In my case, it's usually "that should have been an 8051." (Had it been an 8051, it'd change to "that should have been a 555.")
I've checked; at the qty I buy, an 8051 would save me, at most, 8 cents.
And then I'd have to spend a bunch of time debugging C firmware (because Rust doesn't have 8051 support), and fighting to keep it fitting in RAM (because ~2 kiB RAM).
Naw, I'm good.
@azonenberg @cliffle I dunno, that particular person (who made the comment on hn) doesn't seem to have anything to do with consumer electronics, at least according to the links on his profile. Not even much embedded that I can tell. I think he's mainly just a troll.