Just commit, no matter the response. Adding /s is akin to explaining a joke after you tell it. If someone doesn’t understand or pick up on the sarcasm, it’s not your responsibility to spell it out for them. You add /s because you don’t want to be held accountable.
This is a fundamentally dseems like an argument than in your post, and more or less is just an argument against any sort of progress or innovation. “We got by without ____ for many years, so what benefit could they offer us?”
If communication is intended, then the speaker or writer has a responsibility to make an effort toward being accurately understood. That effort involves using forms, formats, and punctuation that is old and well established, as well as more novel elements of them.