One of my favorites is how they program the same mnemonic character for multiple selections in the same menu. In SW2003, RMB then d was dimension. In SW2004, Smart Dimension and More Dimensions both have the m underlined. So of course the command lowest on the list is the one with the highest priority (i.e. the one that the m responds to). So there is no way to keyboard access one of the most commonly used commands (Smart Dimension) from a RMB menu. Also, I believe that the Insert menu had 3 with the letter b at one point in time.
Then they assign a different mnemonic character for the same command depending on which menu the command appears on (Main Menu, RMB Graphics Area, or RMB Feature Tree). Component properties was the one that really annoyed me in SW2003, it wasn't the same anywhere. Then of course, each of these characters changes between major releases.
My most favorite of these is how the mnemonic character when RMB'ing a component part (SW2003 or SW2004, I forget which) when I want to open it...and the character changes depending on the filename...so there is no standard character so good luck reading that paragraph of a menu (every time) instead using the keyboard to quickly select the item you want.
Why do I look for and use the mnemonics...comes from using computers before the mouse was invented. I guess old habits are hard to forget...BUT it is MUCH faster than mousing once you have the keystrokes memorized.
Anyway, I have stopped looking at SW's mnemonics and have everything programmed in my keyboard or use a macro to call them. This way I am in complete control no matter what they choose to dictate I should be using...at least until they take that functionality away :)
That's my rant for the day :^), Ken