Fahrenheit is a scale based on human comfort. Zero is really cold, and 100 is really hot, in human terms. It's quite simple, but not at all random. Centigrade is fine when you want to boil or freeze water. Kelvin is for mad scientists.
This post is a breathtakingly perfect example of doublespeak. What is it about, anyway? A person with low vision using a text-to-speech app would be flummoxed.