A comment from a user with a non-english OS and, most important, a non-US keyboard!
Key combinations that are natural and easy to use on one keyboard can be quite cumbersome on other keyboards. As an example, the Unix/Linux etc file path separator is '/', normally on the lower right of the keyboard, very easy to use quickly. On my keyboard it is shift-7 ! Imagine using that often and in long strings.
The same goes for many other keys, '[', ']' etc that are 2-key and sometimes 3-key combinations. Some shortcuts will not work at all, because one of the required keys is already used to produce one of the other required keys.
I make do with what is available, but clearly there is an advantage for some to be able to deviate (?) from the standard mappings.
/Per