OS X's full screen apps aren't maximzed windows. If I put Sublime into full screen mode, there's no window, no menu bar. It's a text editor taking up the entire screen.
If I were to maximize Sublime on Windows, Linux, or OS X (green button), you still have the chrome from the windowing system and the OS's menu bars.
Also, the parent comment makes no claim Apple invented anything, he/she is just drawing a comparison people would be familiar with. Frankly, it's more than a little annoying to me that you have to distract from the topic to make completely non-constructive dig at a company you seem to dislike and completely miss the point of the comparison in doing so.