Indeed the question mark syntax is totally subjective matter. I prefer the question mark. Of course I understand that it isn't so subjective/superficial thing when you are the guy who has to implement it in the language, so if there's no point in it on your behalf then it is the end of discussion. :)
My question was more like if it would be possible somehow (without modifying the Nim itself), but it seems I have to call it using the backticks which defeats the whole purpose to my use-case. Thank you for the opinion.