re: hot take
@amiloradovsky@functional.cafe
It doesn't have to be underscore Miloradovsky,Andrew and the whole point of names is to be short. Allowing a space is just as arbitrary as disallowing it, so your argument then simply is "they allowed it", which is fair enough, got to adhere to standards... or set them.
Regarding the further musings, at that stage you've got to ask yourself what is space, and why even ascii. Which is essentially asking "why be compatible?", and the answer is "because it is practical", and something like "I want my entire family history to be my name" is not a strong argument against it.