Writing tools that are POSIX compatible doesn't mean one puts it on the pedestal of the "holy grail of OS design." I've certainly used POSIX to guide design aspects of things I build. Not because I think POSIX is the best. In fact, I think it's fucking awful and I very much dislike how some people use it as a hammer to whinge about portability. But POSIX is ubiquitous. So if you want your users to have less friction, you can't really ignore it.
And by the way, Rust didn't invent this "rewrite old software" idea. GNU did it long before Rust programmers did.
Yes but GNU to put them under GPL. Or that was my understanding.
So then your original comment should be amended to say, "and this is actually all fine when the authors use a license I personally like." So it's not actually the rewriting you don't like, but the licensing choices. Which you completely left out of your commentary.
You also didn't respond to my other rebuttal, which points out a number of counter-examples to your claim.
From my view, your argument seems very weak. You're leaving out critical details and ignoring counterpoints that don't confirm your bias.