No sane person should be happy with the paltry breadcrumbs Oda gave us.
Why is Wano so important, why did BM think part of the OP was in Wano or something, why was Wano the country of gold or whatever, what was Onigashimas real name, is Onigashima the skull of Oars 1 (Thriller Bark was Oars 2 apparently), what is Kaidos full name, why didn't we see and learn more about Oni in Kaidos bare bones flashback etc?