All of Casey's friends say she was a loving mother and a GOOD mother.
IMO, I don't think Casey would put her in the trunk alive, with pizza to eat.
That seems like a stretch to me.
But her friends also thought she worked at Universal and that Caylee was with the nanny at Disney, or the beach, or at her grandparents, while her grandparents thought she was with Casey who was working for Universal.
And friends may not have cared, but they may not have known that Caylee was being taken with Mommy to party or sleep with boyfriends in the same bed, which may not have thrown her out of 'good mommy' category in their eyes but which some might not consider the best mommy behavior.
Friends didn't seem particularly aware that Caylee was being kept away by Casey from people with whom Caylee had very close and caring relationships, her grand parents. One could say that someone who keeps a child from people she's bonded closely with, out of spite or anger, to use the child as a bargaining chilp is not being particularly 'good' to the child, and there's a posibility that had been happening although the friends almost certainly had no reason or exposure to know.
Casey was lying to everyone, about her job, who knows what else, about her family, about Caylee's whereabouts, elementally about who she- Casey was. When you look at the situation, its pretty clear that Casey was living a lie. Was the 'good mommy' real or a mere illusion, a part of her web of lies? With such a person, how does one parse the truth out of the lies?