The trick is that now the keyword return marks an early return. And as early returns are often exceptional, I find the added visibility nice. On the other hand, every function in Rust, except those that contain an infinite loop, returns something so the keyword at the end of the function body is redundant in my opinion.

Also, because function signatures are never infered in Rust, mistakenly adding or forgetting the last semicolon will always result in a type error.