Why is Pirate King considered a combat feat?
People talk about PK level. But PK level = Yonko level.
Whitebeard is a Yonko, hence Yonko-level. Also known as the World’s Strongest Man. Roger never beat Whitebeard; hence Yonko-level.
Pirate King is not a combat feat; if it were, Roger wouldn’t need to beg Whitebeard to bring Oden (take Oden by force against Whitebeard) and he wouldn’t need to sneak around Big Mom for her poneglyph. They’re pirates for God’s sake.
Has there been any powerful pirate that Roger actually beat? If not, he’s truly Equal Man despite being the Pirate King
What is this PK-level that people throw around and what is the gap between Yonko-level?
PK-level = Yonko level. It includes WB, Roger, Garp, Shanks, Mihawk, Kaido, Loki, Luffy and Big Mom.
Admirals could be considered at this level.
Only ones who could be above Yonko-level are Imu, Joyboy, Harald, and Xebec.