ALL World’s Strongest titles are based on rumors, so Kaido’s title is just as legit as Mihawk’s or WB’s. It’s not like everyone in OP is constantly getting their power levels scanned 24/7, so it’s technically impossible to know with complete certainty who the strongest. Btw for all of the wankers who say Oda is creating doubt about Kaido’s title is actually not true, then in that case, the guy who invalidates Kaido’s title is likely Imu and not Akainu or Mihawk like the wankers say