> The argument is that a scale that generally falls between 0-100 is inherently slightly more convenient than that that generally falls between -17 and 37.

I guess it is true for us living in US, but lots of people live in places where it never goes below 0 Celsius (32 F). So I could see them arguing the same with a 0-50 scale.

> But if you took a group of aliens and asked them to come up with a temperature scale that was only used to convey how cold or warm the temperature felt to humans, they would almost certainly use human body temperature in their design process not the freezing and boiling points of water.

Probably, even though they might just get the coldest (-128 F -89 C) and hottest (134 F 56C) temperatures on earth, and scales it from 0-100 so everyone is covered.