Well I think particularly in Wano a lot of Zoro-related theories are well put-together with a lot of evidence, callbacks, lore, narrative purposes, etc.
Even with a mega-theory like ZKK, I genuinely stand by the fact that people who call it a "fanfiction fantasy" have never actually sat themselves down and properly read a well-constructed thread about it. Because even as a Zoro fan I used to think it was just some crazy Zoro wank agenda or whatever, but when I actually did the due diligence myself of researching and reading threads, I realized how valid of a theory it is...regardless of whether it happens or not.
I think you can find a lot of well-constructed Sanji threads/theories as well, I just don't think there are many Sanji fans who go out of their way to create them like @Sanji D Goat does.
Even with a mega-theory like ZKK, I genuinely stand by the fact that people who call it a "fanfiction fantasy" have never actually sat themselves down and properly read a well-constructed thread about it. Because even as a Zoro fan I used to think it was just some crazy Zoro wank agenda or whatever, but when I actually did the due diligence myself of researching and reading threads, I realized how valid of a theory it is...regardless of whether it happens or not.
I think you can find a lot of well-constructed Sanji threads/theories as well, I just don't think there are many Sanji fans who go out of their way to create them like @Sanji D Goat does.