80% of ShutterFly users are women age 25-50. It's reasonable to want solutions for photo-sharing and enjoyment that are best aimed at that demographic.
I am likely being overly sensitive about this at the moment and read subpixel's post differently than intended. I read it as "it should be easy enough for mothers to use" as if to imply mothers need easier software than everyone else.
Instead I likely should have read it the same way I'd read "whoever makes debugging easiest for the programmers of the world will win in the end."