User blog comment:Dark King Rayleigh/SHs and Haki?/@comment-2109035-20101122081557/@comment-3199219-20101122091549

Well haki isn't something you need to be strong, but remember when Luffy fought against the two snake sisters at Amazon Lilly.

He was a strong fighter at that time, even without using the Gear Second. Remember that before using his haki, his attacks were pretty useless.

And I don't agree with the nami think. She doesn't need CoA, I never said that, but CoO for sure would be useful. And about Brook, along with Franky, he is the one with the lowest chance of having learnd haki in the past two years.