This idea has been developed and deployed to Canvas
I often check the SIS ID in a class. For example, in classes with multiple sections I want to be sure I have the right course number.
The SIS ID field in Settings displays about 6 characters. Our SIS ID's look like this CCRSSWK-681-11810.201710. There seems to be lots of real estate in this part of the page, so couldn't the field be larger (maybe 20 characters longer)?
(largely copied from a 2015 suggestion by James O'Connor that did not get the required votes.)