Echelon's comment was "We shouldn't be using unwrap() or expect() at all. [...] unwrap(), expect(), bad math, etc. - this is all caused by lazy Rust developers". Even in my most generous interpretation I can't see how that is anything except a rejection of all unwraps (and equivalent constructs like expect()).

I fully agree with burntsushi that echelon is taking an extreme and arguably wrong stance. His sentiment becomes more and more correct as Rust continues to evolve ways to avoid unwrap as an ergonomic shortcut, but I don't think we are quite there yet for general use. There absolutely is code that should never panic, but that involves tradeoffs and design choices that aren't true for every project (or even the majority of them)