If might depend if your program does 1 request every now and then, or if your program is doing several thousands network requests per second (then I might complain too).

Of course it depends on what you are building, but my point is that the language gives you access to the low-level facilities which nudge people to worry/think about them even when they are irrelevant and unimportant. Because details like copy elision are usually an obvious point which can be improved upon, and people generally have a need to participate and contribute, small things will be mentioned on review and delay the feature even when it makes no difference. It's not the fault of the language itself but rather the culture around it and the easy and obvious answer to this "just dont use C++ if you dont need it" stops being easy and obvious when you try to actually interop with other languages. </rant>

Idk I once sped a particle renderer a few dozen-fold because people were doing unnecessary copies.. it burnt CPU cycles for nothing for a long time before that, which should really be made illegal