the big one i remember is how people got so fucking mad when i think i turned my friend into a girl was made trans in the translation despite the fact that anyone who hasn't had their brain rotted by removed hentai (or who was incredibly closeted and in denial) would read the words on the page and say "oh, this is about a trans girl coming out to her friend and then to the school" because the character in question says they will now live as a girl, dress as one at school and got official permission from the school to do so, are visibly happier and everyone can see it, says they 'finally feel like the real me', attends gym class with the girls, etc.

and people were writing essays demanding the translator get fired, talking about how it was actually femboy erasure, how it wasn't respecting the fictional characters right to decide their own gender, all sorts of bullshit. now it was an incorrect translation, because the mangaka said they weren't trans, but if you weren't paying attention to that stuff and instead just read the manga and translated it (like i assume the translator did because that's what they were paid to do) you would obviously translate it as a trans story