I think that is rather lumping me in with an assumed section of the population who are mindless sheep. It is not a matter of faith - it has been a matter of something that worked for me for many years, which is now no longer there, I have experienced issues since not having it there and was seeking a replacement solution. I certainly didn't get any warm feelings after running a registry scan. I usually had relief when nothing was found and interest if something was. After Norton Utilities found over 2,000 registry errors I was horrified! Because they clearly weren't registry errors (turns out they were system restore points).
My experience was, if I started having problems with things freezing and not loading properly, especially after installing or uninstalling a program, and I rant the Norton 360 registry scanner, it usually cleared 2 or 3 items, sometimes more like 9 or 10 and that solved the issue. I have a feeling that most of the Utility programs are not as conservative as the scanner built into Norton 360.