Kotor 2: Unfinished Mess.
NWN 2: Crap multiplayer
Fallout NV: Buggy Nightmare.
I've skim-read the thread so... heh. I agree with you to an extent. KotOR 2 was defective from the very beginning, but there were circumstances the average gamer couldn't have known about the development, and Obsidian was already taking flak before anything could be explained. The damage to their reputation was done almost instantly. I like KotOR2, but only because a community of people that liked it created some of the most efficient patches I've ever seen, just about every aspect of - at least the core - quest issues were repaired, and I suspect some Obsidian devs were involved in that process.
The thing with Fallout: New Vegas and Fallout 3, and all of these open ended games is the work on them seems to be spread so wide during development that the bugs just pile up. I'm not an expert on game development but I assume there is a process by which areas are created, and then green lighted when they've been finished and tested. For a more linear game these areas are just levels. Entire maps making up single levels that can be played and replayed until most if not all of the bugs are found and squashed. They can forget about that area and concentrate on the next. They could release each level to the public and have it stand up, as a complete game. What they do is put them all together and have all these completed and bug free games making up one big bug free game.
Deadlines approaching, they may start to work on a few levels at once, or maybe from the start have dedicated teams with assigned areas and levels. It's not exactly a good thing to have players saying, "Oh well, look at the size of it, you have to expect these things." Because essentially the size and scope shouldn't matter. Is it possible that it could be cleared and tested by area, so it's essentially many small games being green lighted as bug free and ready, all wrapped in one big one? I don't see why not.
The DLC of Fallout 3 had bugs galore, and they are tiny in comparison to Fallout 3, but also small when compared with other major titles that you can play through entirely without experience a single problem. "I played three hours and only had one crash." Isn't a good thing. "I played this game in its entirety in one sitting." Is a good thing. Is to be expected. Is what it should be before the title is given the go ahead. The DLC was made for an already broken game.
I can understand PC games having problems, and write off maybe 70% of bugs and issues reported, as being a problem with the players' systems. The problem is their end, not with Fallout: New Vegas. The other 30 or so % though, it's just not acceptable. For consoles, I don't think there is any excuse for releasing what is obviously unfinished or broken. Because now devs have the option to patch these console games, it's almost like they know they can get away with errors, and so aren't as thorough with grade A quality, before the games are released. They're just not releasing polished titles. So for the 360 and PS3 audiences, I think they have every right to rage against Obsidian and Bethesda Softworks, and excuses from the community defending Obsidian, "It's a big game. It's to be expected." Frankly is a cop-out, and you're cutting them far too much "slack".