I lurk and search around in many forums. Just because I don't post in a venue doesn't mean I'm not there poking around to see impact. I also am on the patchmanagement.org list where the WGA problem is not reported, I'm not seeing it widely in twitter ,
nor in the TechNet forums, nor in searching around the non Microsoft properties, nor have had any reports in my SMB listserves.
I received assurances that this KB won't kick WGA problems. I truly think that it's a case of coincidence and the root cause is something else and not this patch for this specific issue.
I have I installed in several locations on various systems, I have had no WGA issues.
I stand by my comment - I am not seeing the WGA issue widely reported. The SFC/scannow issues WILL be widely reported because it (unfortunately) an expected side effect of the patch. But there is no actual corruption.
If someone with an active WGA issue and has installed this patch would like to work with me to open a support case to get to the root cause, I would love to help out in the investigation.