If I am writing something that is likely to be read internationally but will mostly be read by people in the US I do as there person I responded to suggested and write 98.6° F (37° C).
My comment was just that for things in the common human use range, ambient and cooking temperatures, Fahrenheit is actually a better scale.
It’s not that I don’t like Celsius or international scales. I have no difficulty using any of them but 310.15° Kelvin would probably be more bewildering for most people in that context.
Maybe it’s just because 98.6 is a song from my youth ;0)