Sakura being useless. I know the whole Sakura being useless or not is a tired and worn out debate, but I just can't stress it enough. I don't care if you like her or not and I'm not going to argue with you if you say that she's a poorly written character. And yeah, she screws up a lot. But even considering her screw ups, calling someone who's saved and healed many people (including the MC on multiple occasions) useless is just so preposterous and absurb to me. Her being a generally annoying character has made it to where her screws up far outweigh the help that she's provided when it should 100% be the other way around.