Yeah, we would need editors and code review tools to not only follow overloads to their functions but also highlight that the operator is overloaded in the firs

Yeah, we would need editors and code review tools to not only follow overloads to their functions but also highlight that the operator is overloaded in the first place. Of course, this is quite a lot more work than just not overloading things in the first place (particularly since the benefit of operator overloading is negligible).