Racing roadkill
Guru
If you regularly work on the threaded parts of a bike (cranks, chainrings, BB's and pedals), then you will soon start to see the issue.There is no ambiguity. Right is right and left is left. The use of NDS is like saying "my car is a non-automatic. A negative shouldn't be used to indicate the norm.
I think DS and NDS is BS and pompous.