I disagree, it's my opinion - you have yours.
No I do not let my baby CIO. I do entertain him with out holding him everytime / all day long. You can sing, read, talk, rock them back and fourth, lay with them, put them in the swing etc with out having to hold them 24/7.
IMO if you can't lay your baby down for five mins with out them crying - they are spoiled. That is, if when you pick them up they are totally fine and go right to sleep or something until you lay them down again. It's not horrible but it can't stay that way either. If it was a four yr old doing that, everyone of you would say spoiled to it.
Bash it all you want, it doesn't change my thoughts.