566
Wow! It actually makes sense!
(i.imgur.com)
Professionals have standards! Community for all proponents, defenders and junkies of the Metric (International) system, the ISO standards (including ISO 8601) and other ways of standardization or regulation!
But that's the same argument that people use against Celsius: "the freezing and boiling points of water is an arbitrary scale, I prefer Fahrenheit because it's more human centric" (Even though it's not). What you're saying is equally as arbitrary, the average temperatures of the planet as a whole is still not a human centric frame of reference.