It is not uncommon to come by a question involving some use of units. Either it's temperature, distance, shoes sizes or any of the other countless cases where units are used. So the question is:
How do we best work with units?
Should it be US Customary, SI or a mix?
There are many things to consider, but I think it will be better to choose one "standard" and go with that. It makes it easier for askers and editors when there is an agreement on the correct way to write units.