"If it 'aint broke, don't fix it"
Since the dawn of time, 95% of desktop GUI's have a toolbar with a minimum of File, Edit and Help. If you wanted to open a file, e.g. a Word document or Eclipse project, you went to File and selected Open. If you wanted to know what version of software you were running, you could rely on a "Help | About" menu option.
Now I challenge you to find out what version of Word, or any of the MS Office suite, you are using, on the more later version. I don't know which versions, exactly since I can't see how to discover the version number I am on, but the ones where, for some unexplained reason, they've removed the Edit and Help menu, and clicking on File takes you to a whole new window. It also makes it much harder to Google for the solution, since you can't search for what version of Word you are using, so 90% of results still say "Go to Help | About".
As well as that, they've also redesigned the file dialog; now it's impossible to go directly to any directory on your computer. You can only go up or down a level, although if you click on the right area, it brings up the original classic file dialog! Why is this hidden? I can only assume it's so they can keep people paying for the MCSE certificates, or whatever they're called these days.
The latest culprit is Firefox. What is the point of Firefox's "Other Bookmarks"? If a user bookmarks a page, wouldn't they want it to appear under Bookmarks, not in some obscure folder that hardly anyone even knows about? I imagine new users abandoning Firefox since their bookmarks don't seem to be added, which was my first thought. They changed this feature a few months ago. Why?? Was it too straightforward and logical?