> The best course of action for Go on this front, would be to expose operator overloading of numeric operators, combined with a community expectation that this isn't to be used for anything but numeric operations.

I don't think this solves the issues. For example, I have yet to think of a way to overload `+` in a consistent and performant manner. E.g. think of `a += b` vs. `a = a + b`. Either you make them separate operators (in which case there's no guarantee they do the same thing - see for example Python, where they commonly differ) or you are overallocating in the common case.