This is a misleading comment. A Rust program may use reference counting by explicitly wrapping some value in Rc<> or Arc<>; the standard library provides these generic types. There are no "constructs" built in to the language or standard library that require the use of reference counting.
I wrote it's like shared_ptr which is also construct in C++ standard library, what is misleading here? You don't need to use it also in C++ and I did not wrote that you need to use it in Rust also, you disagree with something that I didn't wrote.
