Interesting.
I pretty much soak up all the Windows updates when they arrive. My reliability monitor in W7 has flat-lined at the max for as many weeks as it goes back (5 months worth IIRC). Windows updates normally culminate in a Service Pack eventually and nobody would dispute that over that period of time stability of an OS gets improved.
There was one minor issue with one particular update in the last 5 months from what I can recall which was subsequently fixed.
The one thing that keeps me safe from this kind of thing and any kind of malware you care to name is having a strong policy of backing up the OS. System restore doesn't cut it. You need an imaging application that can backup or restore your entire OS in a matter of a few minutes per week.
If you'd found a particular issue with a specific update that would be useful but this kind of unfounded speculation over something that vaguely might or might not be an issue just undermines peoples confidence in whether their systems are working correctly or not.
Adopt a strong policy and remove any doubt. That can include incremental backups as in my case or only ever adopting full service packs. The responsibility is down to the administrator of your machine. Which is usually yourself.
btw I've not found any bogey men in the wood-pile on the latest round of updates. I always decline 'Skylight' and 'Bing Desktop'.
It figures if your machine worked perfectly when you took delivery of it and haven't updated a thing since it should still work perfectly, sometimes though you'll upgrade software or hardware and having the latest stability fixes to Windows may be just what's required if issues become apparent after such an upgrade. Being able to get back to any point before such a major change however is great security, especially when it can be done in a matter of a few minutes.