What are small, harmless, or insignificant things in fandom that people hate ridiculously?

Things that comes to mind are child characters—those who are simply portrayed as children, behaving in ways that are natural for their age. They often face unwarranted hatred, primarily because some viewers find them annoying, even though their actions are reflective of how children typically act in real life. This same issue extends to teenage characters, who are often criticized for behaving in ways that are entirely typical for adolescents, yet still receive undue hate.

Another thing that comes to mind is the treatment of female characters in fandoms. While I understand that not all fandoms exhibit this behavior, it’s clear that some show a pattern where female characters, regardless of their emotional depth or valid reasons for acting in a feminine way, are often criticized for being 'annoying' or 'unbeatable.' This kind of backlash can often stem from sexism, as male characters who display similar traits are more frequently praised or adored, even when they behave in much the same way.

Lastly, it's the issue of shipping. Yes, I understand that shipping is a normal and personal part of fandoms, but in my experience, it can become incredibly frustrating, especially when it turns into a constant topic of debate. Not all ships face this type of backlash, but some ships that others find unacceptable or don't align with their headcanons are treated with intense hostility. Lines like, 'Why is this ship even a thing?' 'They don’t care about relationships,' or 'I can’t see how these characters would ever be together,' are common. It’s as if people forget that most of these ships are non-canon, and yet they treat it like a crime to ship them.

And now, what are the things that aren't a big deal, but you find the hate towards them ridiculous?