@Deicide:
Really? Have we seen her personality before the trauma of enslavement? Or her former dreams?
How were they captured? I don't remember seeing it. Why were they on the ship at all, since only strong Kuja can board the ship, and they were really young (12) back then?
How did they survive four years? Was there some struggle from there? Their older sister protecting the younger and suffering for it?
There are lot of things that were not "touched upon" and that would reveal more of Hancock's character to the reader.
well we did see her in chapter 0 telling her sisters that they need to become really strong now that pirate age started. They got onto ships when 12 or 13 because they were strong enough back then to become pirates on the ship. Ha does that mean then at 12/13 they were stronger than margurette is now.
they were captured on that ship somehow, most likely people like peterman, sneakily. Since all we see is the other pirates asking/wondering where they are. so theyw ere captured without fight. I think anime showed it more in detail, but since anime, dont' know how much can be taken for accurate. then obviously sold to nobles, marked, horrible experience for 4 years, then freed by fisher tiger while he freed all others.
lost and nyon found them and brought them back.
Yea sure these can all be extended upon, but my argument from before was that until the time for it, it is not needed at all. Until say we are charging upon the World Nobles land to stop their tyrani will then be a good time for a flashback in which we see personally who was her main owners and stuff like that to make it more personal feeling like when Robin clutched Spandam.
Or who knows when or where a good flashback extention would come in place and be about for Hancock. Like you are all pointing out, it is pretty vague, but again as I'm pointing out, we have the main points and there is no need to flesh it out until it will give the most emotional impact/effect.
What good would have a 2-3 chapter flashback back on amazon lily have helped with? All it woudl have done would have made us want to rush back and punch roswald again and piss on him. But we wouldnt' and it woudl lose all its emotional impact, because we would have not been given a satisfactory conclusion to it, or happy ending but been left hanging for god knows how many chapters until they receive what htey deserve.