I appreciate your defence of the indefensible :P

I accept that psi is more intuitive in many cases than Pascals. But I remain unconvinced about Fahrenheit. I reside two places during the winter. One has temperatures around 0C, and the difference between -1C and +1C is much more important than the difference between -1F and +1F, it's the difference between rain or snow! The other place regularly sees temperatures around -25C. In both places -18C is just some random uninteresting temperature, letting it be 0 is... disturbing.