Is Anyone Else Annoyed by This?

OK maybe I'm just being picky or difficult but I can't be the only one who is annoyed by this. I can't for the life of me understand who thought up this windows feature and why the entire company thought it was a good idea.

You have a few windows up, and you need to get to one behind the window you're currently looking at. You slide the window you have on top to the corner of the screen to get to the bottom window but the one you just slid to the corner has now automatically expanded over the entire screen, then when you click to size it back down, it goes right back to the spot you moved it from in the first place.

Please tell me I'm not the only one completely annoyed by this. It's not that it does this that annoys me the most. It's the fact that this feature had to be approved by several computer GENIUSES and for some reason not one of them stood up and said, "Dude, this is a really stupid feature. No one moves a window to the side with the hopes of it expanding over the entire screen.