Man, you people think Skyrim was buggy? Track down a copy of pre-patch Daggerfall, and you'll learn what 'buggy' really means. This was a game wherein you could walk into a store, loiter around until it closed (at which point the shelves went from being tagged as shelves that you can steal stuff from to containers that you could just take stuff from), take everything from the shelves, then turn around and sell it back to the merchant, who'd been watching you the whole time, but raised no objections. A game wherein, when you leveled, you'd go to the stats screen and be given some arrows to assign your new attribute points- which you could use to raise and lower your stats at any point, regardless of whether you'd gained any levels or not. A game wherein creating a custom character would sometimes cause you to spawn in with -1000 health; where equipping a bow would sometimes cause all enemies to equip an identical bow (hope you didn't have a Bow of Death that sometimes killed in a single shot, especially since arrows would sometimes pass through walls and doors!); where jumping while doing the quick swing would sometimes make you fly straight up in the air; a game where jumping while running would let you walk on water, regardless of how high your running and jumping skills were; a game where Hermaeus Mora outright refused to even talk to anyone using the barbarian class; a game with void-running, for both you and the (sometimes quest-vital) enemies; and that's just off the top of my head. You also had plenty of errors, crashes, corruptions, and the like, but those're hardly unique. The patch took out most of these, at least mostly.
Compared to it predecessors, Skyrim is a bastion of low-bug work.