[steveklabnik]

Rust's pipes in lambdas come from Ruby, a language that's often regarded as having beautiful syntax.

Rust is objectively not mojibake. The equivalent here would be like using a-z, as Rust's syntax is borrowed from other languages in wide use, not anything particularly esoteric. (Unless you could OCaml as esoteric, which I do believe is somewhat arguable but that's only one thing, the argument still holds for the vast majority of the language.)