The topic at CoU is this one:
http://www.dozleng.com/updates/index.ph ... opic=14149
Which, in turn, links to this blog:
http://msmvps.com/blogs/spywaresucks/ar ... 82740.aspx
and later links to this topic and the links you posted.
Suffice it to say, I am dropping SiteAdvisor and going with Robot Genius, and TrendSecure instead. I am going to try out SiteHound as well, but SiteAdvisor is permanently gone from my side.
The last link you posted was a very ... interesting read. At first glance it would seem to be a bit on the subjective side, but as I stated in my last post at CoU, based on what I have seen with my own eyes, I tend to believe it is more fact than fiction.