I wonder whether it's a sarcastic comment. Due to Poe's Law, I cannot tell.

Why cant just farenheight be like kelvin, just add /subtract 273.15 to x thats it no fractions involved lol

Like, okay thats 1,000,273.15 kelvin that seems hot

That is exactly what rankine is but it is not really widely used.

>Do... you actually have anything practical to relate it to at that scale?

I think was the point of his comment. That the number is so big the unit doesn't matter.

Also, I think it relates to the point people arguing for Fahrenheit make that 0C and 100C aren't as relatable since they're related to boiling and freezing points of water compared to 0F and 100F which would be more "human" temperatures. So the joke is that this is one case where it doesn't matter.