Earlier quoted context omitted.
Just like PC's, Macs have entered the world of, what I call, "car guys." Car guys are always fiddling with things for a tiny performance or perceived security boosts without really thinking things through. In the Windows world you'll hear them tell you how you must disable the UAC, must install registry 'cleaners', must use $av_vendor_x because $av_vendor_y sucks, fiddle with some obscure registry change, use drivers…
This is a great analogy. In high school and college, I believe I was a Windows and then Linux "car guy". One of the things I liked when I (mostly) switched to OSX from Linux was that I no longer had to spend any time fiddling with stuff. I used to find it fun, now it just feels like there's way too many interesting things to be learning about and doing to spend any time tweaking crap on my computer!
If treated like science instead of voodoo, messing with your computer becomes one of those "interesting things to be learning."