Yeah. I told myself that Hearthfire is probably going to be buggy. How buggy could a small add-on like this be? Never underestimate the power of bethesda.
Bethesda has been making buggy game for almost 20 years. If you've played Daggerfall, you have seen just how bad things can get in even a good game. People have been excusing the bugs for nearly 20 years it seems. I may be wrong, though. I just know that while Bethesda makes good games, they are sometimes way too ambitious. Many ambitious games are buggy or just plain odd. When Arena was made, we could have gotten something at the levels of Tail of the Sun(if you don't own that PS1 game, just look up some gameplay of it. It is odd. I love it, personally.). We were lucky to just get something that sold.
Another ambitious game I'd like to mention is Okami. It does have tons of safe moments, but really, it is ambitious.
You can't have these kinds of games without problems popping up. With Tail of the Sun, it was the game being confusing if you bought it used without a manual. With the PS1 remake of Lunar 2, it was giving Sony the middle finger for calling RPGs nerdy. With Psychonauts... Okay bad example there... Games made by the guy who made Psychonauts have some weird need to be cult classics only...
TES got the bad part of things. Bethesda was used to making smaller games when they made Arena. They somehow never got out of being used to that.