The only key that does the same thing shifted or not is “q Q”. (also “eE”, “yY” don’t appear to do anything in object mode, and “jJ” seem to be not mapped to anything.
Many keys have two different functions depending on upper/lower case
Many keys won’t do anything when shifted.
I guess you can specifiy “G” or “SH-G”, but when I read something that says press “B”, to me that means the SHift is implied
When indicating an input that requires a shift (e for example), it’s best to list it with the shift (“Shift+E” for example), as the key itself is actually “E” and not “e”. Framing the issue as a difference between upper-case and lower-case is both misleading and confusing. You might also notice that when the capslock is engaged, the inputs E and Shift+E have the exact same functions as they do when capslock is not engaged. Were it an issue of upper-case versus lower-case, the functioning would be reversed.
I guess the reason I emphasize the letter-case, is that I usually don’t look at the keyboard …but rather on the screen output. After reading the Wiki conventions, I suppose I’ll yield to the majority … but I refuse to give in to the “AKEY”, “BKEY” stuff