There are a few external contributors to bugs on the PC which are often overlooked. They are in no particular order:
1. Mods. Many people install just about every "Better Faces", Skyrim HD", and "Improved Shaders" mods (shout-out to the Nexus) and then run into performance issues or just plain weird bugs in the game. When I encounter what I perceive to be a bug I disable all mods and load an earlier save and try to duplicate the problem. If the bug persist then I'll Google for a solution. If not, I'll enable my mods one by one until I find the culprit and file a bug report with the creator of said mod.
2. PC Hardware. Just because your system barely passed the mark does not mean it will work as advertised. Minimum specs says "This should run the game. For how long and with how many issues we can't tell". If you have to use .ini tweaks to get a few extra fps then you need an upgrade. If you insist of trying to run Skyrim at max settings on a 5 year old system don't expect to have fun.
3. Pirated Software. Now before you get all huffed and puffed, I'm not saying that everyone who has issues is playing the "free download" version of Skyrim. I'm saying, a lot of the trolls who sign up just to flame and then run off fits this profile and that it is a rather substantial contributor to the amount of complaints that we see. Chances are they are also a large part of the group who needs to upgrade their hardware since I doubt they could afford a decent PC if they can't afford $60. Usually running an non-updated version of Windows as well which just further makes things go awry. Aside from a few minor glitches in quests still plaguing all of my technical issues were fixed by patches. I have not had one CTD since patch 1.3.10.
4. Exploiting. There's quite a few complaints where someone is deliberately taking advantage of a flaw in the game and then when it bites them in the ass they jump on the forums and scream bloody murder. Seriously, Bethesda could not have foreseen every possible weird thing every person in the world would think of trying at point x in dungeon y. Use some common sense.
So yeah, Skyrim's got a few issues but on the whole it's pretty stable now and they are working on fixing the quests. People just need to learn some love.
