Usually luffy will give people nicknames since he is not familiar with them. Back in the day before someone else join the crew. He calls crew member like
Nami- theft
Sanji- cook
Chopper-reindeer
Robin-you
Franky-speedo man
Brook- corbuckle
Jinbei-old man
The thing luffy you have earn his respect as individual person. Then he will call you by your real name. Hell he even gave Hancock nickname called her hamcock.
Nami- theft
Sanji- cook
Chopper-reindeer
Robin-you
Franky-speedo man
Brook- corbuckle
Jinbei-old man
The thing luffy you have earn his respect as individual person. Then he will call you by your real name. Hell he even gave Hancock nickname called her hamcock.
The difference is that he calls her Yamao simply because he doesn't give a damn what her actual name is. He's been told multiple times what it is and was corrected when he got it wrong, but he doesn't care.
All the straw hats, when they told Luffy their name he remembered and called them by that. And this is before they joined the crew.
But you disqualify yourself from any serious discussion about it when you refer to her as "Yamao" or "That Nami clone"