Hmm, this is a topic that I'd expect to find on gamefaqs. I'll reserve my judgement for when the game is in my hands.
Obviously there will be bugs and glitches in such a huge game, can't see why that automatically makes the game bad. There is no game released nowadays without bugs. Also if "dumbing down" means getting rid of the crappy character system of Oblivion, I'm all for it.
It's not about glitches and/or bugs for me. It's about the combat, the AI, the story and the limited freedom of choices. I've watched the leaked gameplay footage and it really looks different from the gameplay videos that you find on YouTube and I don't mean that in a good way.