...and many of these problems were traced to APE hacks and other miscellaneous hacks that were in their Tiger OS before the update.

I had no problems with my update and those that shared my family pack (5 macbooks). Most of our Apple User Group members in Maui also installed theirs flawlessly. The Apple forum thread above was about the blue screen problem and how it can be fixed (which they seem to have already). I don't think you would see any users posting their flawless upgrades in that thread. If you read the thread as it unfolded, many of them have about 5 -10 posts each which would explain the LOOOONG thread.

My .10cents but of course you can call me an Apple Fanboy anytime.