One of Blender’s strengths is its flexible use of rectangular areas. All of the windows can become any other. They work and look consistently. Each one features a “header” that can moved to the top or bottom, and there are little “splitter” areas at the top-right and bottom-left corners that can be used to more areas.
I said “consistent” but really every window is consistent except for one: the “Info Window”. That is the area at the top of application that contains the “File”, “Add”, “Render” menus, allows you to change layouts, scenes, and render engine.
Unlike every other area, the items on the Info window acts on the entire application, not just the contents of its own window. It is global, not local. Logically it is almost as if it were a large area that contains all the other areas, but it does not. Knowing how all the other areas work, a user might guess that flipping that header “to the bottom” would result in it moving to the bottom of the entire application, but it does not. Instead it merely moves a few pixels down within its narrow height.
Like every other area, you can change it to something else by using the control at the left, but doing so here does nothing useful since the area is too small to accommodate any other editor window. You can also split it using the controls at the top-right and bottom-left, but doing so is not useful in any way.
If you move your mouse to the bottom edge of it you can drag the window larger. What you see in the extra space is the “command history”. This can be useful but this feature is completely hidden.
This area either needs to become consistent with the others or it should proudly acknowledge that it is distinct from the others. I propose the latter.
I think first that the “command history” should be chopped out of it and that become a separate editor window type. Then it will no longer be a hidden feature and can even get its own header with menus and buttons, etc.
Then I think the Info panel should have the “window change menu” removed so that you can no longer change it to some other window type. Similarly the window “splitters” should be removed. And also remove the option to flip the header from top to bottom. We’d then be left with an area that can no longer be accidentally changed, re-sized, flipped or split. It would become what we already consider it to be: the application’s menu.
Then to further indicate that this area is special it should be displayed in a different way, perhaps with a slightly different background color.