Zoro said he would gather the Samurai for Luffy, he didn't.
Zoro said he would avenge Yasui, he didn't.
Zoro said he would visit Ryuma's grave, he didn't.
Oda introduces Ushimaru Shimotsuki to possibly explore Zoro's background and past but later decides he has no further interest in exploring the character in an SBS.
Oda made Luffy parallel Ryuma instead of Zoro, his literal descendent.
Oda has been dropping Zoro's plotlines left and right in Wano, if he is doing this to him in the land of samurai, I can't imagine what he would do to Zoro in future arcs where he doesn't even have much connection to the plotline. Oda dedicated a whole arc to Sanji but can't even bother to explore plotlines for Zoro that would only take a few panels at most. If Usopp ends up getting similar focus as Sanji in Elbaf, then that confirms Oda hates Zoro.
Zoro said he would avenge Yasui, he didn't.
Zoro said he would visit Ryuma's grave, he didn't.
Oda introduces Ushimaru Shimotsuki to possibly explore Zoro's background and past but later decides he has no further interest in exploring the character in an SBS.
Oda made Luffy parallel Ryuma instead of Zoro, his literal descendent.
Oda has been dropping Zoro's plotlines left and right in Wano, if he is doing this to him in the land of samurai, I can't imagine what he would do to Zoro in future arcs where he doesn't even have much connection to the plotline. Oda dedicated a whole arc to Sanji but can't even bother to explore plotlines for Zoro that would only take a few panels at most. If Usopp ends up getting similar focus as Sanji in Elbaf, then that confirms Oda hates Zoro.