The problem comes when Sanji fans have 0 faith in their fav character (and i dont blame them for that since Sanji wasnt able to do shit after the TS, and even before TS all his achievements were subpar) try to put Sanji on Zoro's level because something or another that happened in the manga.
"Look, Zoro and Sanji atacked the same pacifista at the same time, they equals"
"Look Zoro cut a kraken's tentacle while Sanji only gave it a sunburn, they equals"
"Look Zoro and Sanji both hunted a dinosaur each, and both dinosaurs where the same size, none of the two struggled with it at all, but thats a clear parallel with the giants, they equals"
"Look, Zoro and Sanji argue a lot, they equals"
Each and every one of such arguments is stupid as hell, and show how desperate Sanjistans are to downplay other characters in order to elevate the shit cook to their levels in their headcannon, because they know they cant elevate their character with his achievements alone. Soo we just have to kindly remind them about all the L's and about how badly Oda fucked up Sanji both when the timeskip started and on WCI.